APA-viite (7. p.)
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.
Chicago-viite (17. p.)
The American Philatelic Society Congress, Inc, et al. Forty-third American Philatelic Congress: October 7-9, 1977 : Palmer House Hotel.
MLA-viite (9. p.)
The American Philatelic Society Congress, Inc, et al. Forty-third American Philatelic Congress: October 7-9, 1977 : Palmer House Hotel.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.