Cita APA

Pourade, R. F., & Copley, J. S. (1960). The explorers. The Union Tribune Publishing.

Citación estilo Chicago

Pourade, Richard F., and James S. Copley. The Explorers. San Diego: The Union Tribune Publishing, 1960.

Cita MLA

Pourade, Richard F., and James S. Copley. The Explorers. The Union Tribune Publishing, 1960.

Warning: These citations may not always be 100% accurate.