Cita APA

Allen, G. R., & Robertson, R. (1997). An annotated checklist of the fishes of Clipperton Atoll, tropical eastern Pacific. Universidad de Costa Rica.

Citación estilo Chicago

Allen, Gerald R., y Ross Robertson. An Annotated Checklist of the Fishes of Clipperton Atoll, Tropical Eastern Pacific. Universidad de Costa Rica, 1997.

Cita MLA

Allen, Gerald R., y Ross Robertson. An Annotated Checklist of the Fishes of Clipperton Atoll, Tropical Eastern Pacific. Universidad de Costa Rica, 1997.