Cita APA

Beavers, R. A. (1992). The birds of Tikal: An annotated cheklist for Tikal National Park and Peten, Guatemala. Texas: Texas A & M University.

Citación estilo Chicago

Beavers, Randell A. The Birds of Tikal: An Annotated Cheklist for Tikal National Park and Peten, Guatemala. Texas: Texas A & M University, 1992.

Cita MLA

Beavers, Randell A. The Birds of Tikal: An Annotated Cheklist for Tikal National Park and Peten, Guatemala. Texas: Texas A & M University, 1992.