APA引文

America's Leading Stamp Dealer. Mystic's U.S. stamp catalog. America's Leading Stamp Dealer.

Chicago Style (17th ed.) Citation

America's Leading Stamp Dealer. Mystic's U.S. Stamp Catalog. San José, Costa Rica: America's Leading Stamp Dealer.

MLA引文

America's Leading Stamp Dealer. Mystic's U.S. Stamp Catalog. America's Leading Stamp Dealer.

警告：這些引文格式不一定是100％准確.