Magnitude sources:
Blank: Vorontsov-Velyaminov, B.A., Krasnogorska, A., & Arhipova, V. 1962-68 Morphological Catalogue of Galaxies (Moscow State Universits Moscow), MCG magnitudes. 
0: de Vaucouleurs, G., & de Vaucouleurs, A. 1964, Reference Catalogue of Bright Galaxies (University of Texas Press, Austin), B(0) magnitude 
Z: Zwicky, F., Herzog, E., Wild, P., Karpowicz, M., & Kowal, C. 1962-68 Catalogue of Galaxies and Clusters of Galaxies (California Institute Technology, Pasadena). 
S: Corrected Shapley-Ames magnitudes. 
D: Tully, R. B., & Fisher, R. F. 1987, Catalog of Nearby Galaxies (Cambridge University Press, Cambridge). 
M: Markarian, other Russian estimates. 
B: de Vaucouleurs, G., de Vaucouleurs, A., & Corwin, H. 1976, Second Reference Catalogue of Bright Galaxies (University of Texas Press, Austin), BT magnitudes. 
C: CCD Blue. 
E: Observers eye estimates (blue).

Radial Velocity Sources:
ADL: Afanasiev, Denisyuk, and Lipovetskii, V. 1979, Sov. Astron. Lett., 5, 144. 
AE: Arkhipova, V., & Esipov, V. 1979, Sov. Astron. Lett. 5, 140. 
AK: Afanasiev, V., Karachentsev, I., Arkhipova, V., Dostal, V., & Metlov, V. 1980, A&A, 91, 302. 
BCW: Balkowski, C., Chamaraux, P., & Weliachew, L. 1978, A&A, 69, 263. 
BCWB: Barbon, R., Cappaccioli, M., West, R., & Barbier, R. 1982, A&AS, 49, 73. 
BGP: Bottinelli, L., Gouguenheim, L., & Paturel, G. 1981, A&AS, 44, 217. 
C: Chamaraux, P. 1987, 1988 (private communication). 
DL: Denisyuk, E., & Lipovetskii, V. 1984, Astrofizika, 20, 525. 
DLA: Denisyuk, E., Lipovetskii, V., Az Afanasiev, V. 1976, Astrofizika, 12, 665.
DS: Davis, M., & Strauss, M., private communication. 
FT: Fisher, J. R., & Tully, R. B. 1981, ApJS, 47, 139. 
HR: Huchtmeier, W. K., & Richter, O.-G. 1989, A General Catalog of H I Observations of Galaxies (Springer, Berlin). 
HVF: Heisler, C., Vader, P., & Frogel, J. 1989, AJ, 97, 986. 
LS: Schweizer, L. 1987, ApJ, 64, 411. 
MCS: Menzics, J. W., Coulson, I. M., & Sargent, W. L. W. 1987, AJ, 97, 1576. 
MLS: Markaryan, B., Lipovetskii, V. & Stepanyan, J. 1980, Astrofizika 16, 5; Markaryan, B. E., Lipovetskii, V. A., & Stepanyan, V. A. 1984, Astrofizika 21, 419.
ON: da Costa, L. N., Pellegrini, P. S., Willmer, C. N., & Latham, D. W. 1982-87, LNA and SAAO observations.
ON1: da Costa, L. N., Pellegrini, P. S., Nunes, M. A., Willmer, C., & Latham, D. 1984, AJ, 89, 1310. 
PTS: Proust, D., Talavera, A., Salvador Sole, E., Mazure, A., & Capelato, H. V. 1987, A&AS, 67, 57. 
PTV: Palumbo, G., Tanzella-Nitti, G., & Vettolani, G. 1983, Catalogue of Radial Velocities of Galaxies (Gordon and Breach, New York). 
R: Rood, H. 1981, private communication (Catalog of Galaxy Redshifts)-National Space Science Data Center. 
RC2: de Vaucouleurs, G., de Vaucouleurs, A., & Corwin, H. 1976, The Second Reference Catalogue of Bright Galaxies (University of Texas Press, Austin, Texas). 
RC3: de Vaucouleurs, G., de Vaucouleurs, A., Corwin, H., Buta, R. J., Paturel, G., & Fouque, P. 1991, Third Reference Catalogue of Bright Galaxies (Springer, New York). 
RFT: Rubin, V., Ford, K., Thonnard, N., Roberts, M., & Graham, J. 1976, AJ, 81, 687. 
RMD: Roth, J., Mould, J. R., & Davies, R. D. 1991, AJ, 102, 1303. 
RSA: Sandage, A., & Tammann, G. 1981, The Revised Shapley-Ames Catalog (Carnegie Institution of Washington). 
S: Sandage, A. 1978, AJ, 83, 904, 1467. 
SD: Schechter, P., & Dressler, A. 1987, AJ, 94, 563. 
T: Huchra, J., et al. 1986-1991, 60" observations. 
T0: Huchra, J., Davis, M., Tonry, J., & Latham, D. 1983, ApJS, 52, 89; Huchra, J. et al. 1988, private communication (remeasurements of galax with poor velocities or discrepant redshifts).
T1: Huchra, J., Wyatt, W., & Davis, M. 1982, AJ, 87, 1628. 
T2: Chapman, G. N. F., Geller, M. J., & Huchra, J., 1988, AJ, 95, 999. 
T3: Zabludoff, A., Huchra, J., & Geller, M. 1990, ApJS, 74, 1. 
T4: Hickson, P., Mendes de Oliveira, C., Huchra, J. P., & Palumbo, G. G. C. 1991, preprint. 
TC: Tifft, W. G., & Cocke, W. J. 1988, ApJS, 67, 1. 
TM: Huchra, et al. 1983, MMT observations. 
TRF: Thonnard, N., Rubin, V., Ford, K., & Roberts, M. 1978, AJ, 83, 1564. 
VLS: Lipovetskii, V. A. & Stepanyan, J. A., 1986, Communications of the Special Astrophysical Observatory, "First Byurakan Sky Survey." 
VV1: de Vaucouleurs, G, & de Vaucouleurs, A. 1976, AJ, 81, 595. 
VV2: de Vaucouleurs, G, de Vaucouleurs A., & Nieto, J.L. 1979, AJ, 84, 1811.