APA (7th ed.) Zitazioa
Pope, N., Growald Brooks, N., & Hundertmark, K. Illustrated Guide to the National Postal Museum.
Chicago Style (17th ed.) Zitazioa
Pope, Nancy, Nancy Growald Brooks, eta Kristin Hundertmark. Illustrated Guide to the National Postal Museum.
MLA (9th ed.) Zitazioa
Pope, Nancy, et al. Illustrated Guide to the National Postal Museum.
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