The American Philatelic Congress, Inc, Koenig, D., Sellers, F. B., Pratt, R. H., Friedberg, R., Skavaril, R. V., . . . Brett, G. W. Fifty-second American Philatelic Congress: October 24-26, 1986 : Ambassador Hotel. Los Angeles, California.
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Chicago-čujuhus (17. p.)
The American Philatelic Congress, Inc, et al. Fifty-second American Philatelic Congress: October 24-26, 1986 : Ambassador Hotel. Los Angeles, California.
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MLA-čujuhus (9. p.)
The American Philatelic Congress, Inc, et al. Fifty-second American Philatelic Congress: October 24-26, 1986 : Ambassador Hotel. Los Angeles, California.
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