American Philatelic Society. Fifty-second American Philatelic Congress: October 24-26, 1986 : Ambassador Hotel. Los Angeles, California.
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Cita Chicago Style (17a ed.)
American Philatelic Society. Fifty-second American Philatelic Congress: October 24-26, 1986 : Ambassador Hotel. Los Angeles, California.
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Cita MLA (9a ed.)
American Philatelic Society. Fifty-second American Philatelic Congress: October 24-26, 1986 : Ambassador Hotel. Los Angeles, California.
Copiado correctamente al portapapeles
Error al copiar al portapapeles
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.