Cita APA (7a ed.)
The American Philatelic Society Congress, Inc, Schneider, S., Fuerst, T. P. d. l. S. F. d. C., Brandeberry, R. B. S. d. C. F. A., Hahn, J. D., Sousa, J. M., . . . Weigelt, H. Forty-third American Philatelic Congress: October 7-9, 1977 : Palmer House Hotel.
Cita Chicago Style (17a ed.)
The American Philatelic Society Congress, Inc, et al. Forty-third American Philatelic Congress: October 7-9, 1977 : Palmer House Hotel.
Cita MLA (9a ed.)
The American Philatelic Society Congress, Inc, et al. Forty-third American Philatelic Congress: October 7-9, 1977 : Palmer House Hotel.
Precaución: Estas citas no son 100% exactas.