APA (7th ed.) Zitazioa
Parsons, L. A. (1967). Bilbao, Guatemala: An archaeological study of the Pacific coast Cotzumalhuapa region. Milwaukee Public Museum.
Chicago Style (17th ed.) Zitazioa
Parsons, Lee Allen. Bilbao, Guatemala: An Archaeological Study of the Pacific Coast Cotzumalhuapa Region. Milwaukee, Wisconsin: Milwaukee Public Museum, 1967.
MLA (9th ed.) Zitazioa
Parsons, Lee Allen. Bilbao, Guatemala: An Archaeological Study of the Pacific Coast Cotzumalhuapa Region. Milwaukee Public Museum, 1967.
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