Cita APA

Standley, P. C. 1., & Dahlgren, B. E. n. 1. (1930). Flora of Yucatan. Chicago: Field Museum of Natural History.

Citación estilo Chicago

Standley, Paul Carpenter 1884-1963, y Bror Eric n. 1877 Dahlgren. Flora of Yucatan. Chicago: Field Museum of Natural History, 1930.

Cita MLA

Standley, Paul Carpenter 1884-1963, y Bror Eric n. 1877 Dahlgren. Flora of Yucatan. Chicago: Field Museum of Natural History, 1930.