Lua APA (7ú heag.)
Parsons, L. A. (1967). Bilbao, Guatemala: An archaeological study of the Pacific coast Cotzumalhuapa region. Milwaukee Public Museum.
Lua i Stíl Chicago (17ú heag.)
Parsons, Lee Allen. Bilbao, Guatemala: An Archaeological Study of the Pacific Coast Cotzumalhuapa Region. Milwaukee, Wisconsin: Milwaukee Public Museum, 1967.
Lua MLA (9ú heag.)
Parsons, Lee Allen. Bilbao, Guatemala: An Archaeological Study of the Pacific Coast Cotzumalhuapa Region. Milwaukee Public Museum, 1967.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.