APA (7th ed.) Zitazioa
Bianculli, A. J. Railroad History on American Postage Stamps.
Chicago Style (17th ed.) Zitazioa
Bianculli, Anthony J. Railroad History on American Postage Stamps.
MLA (9th ed.) Zitazioa
Bianculli, Anthony J. Railroad History on American Postage Stamps.
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