Cita APA

(1980). Habitat evaluation procedures (HEP): ESM 102. Washington, D. C.: U.S. Fish and Wildlife Service.

Citación estilo Chicago

Habitat Evaluation Procedures (HEP): ESM 102. Washington, D. C.: U.S. Fish and Wildlife Service, 1980.

Cita MLA

Habitat Evaluation Procedures (HEP): ESM 102. Washington, D. C.: U.S. Fish and Wildlife Service, 1980.