APA引文

Vatican Philatelic Society, Ufficio Philatelico e Numismatico, & Etchingham, J. Vatican stamp collection.

Chicago Style (17th ed.) Citation

Vatican Philatelic Society, Ufficio Philatelico e Numismatico, and John Etchingham. Vatican Stamp Collection.

MLA引文

Vatican Philatelic Society, et al. Vatican Stamp Collection.

警告：這些引文格式不一定是100％准確.