APA (7th ed.) Citation

Pourade, R. F. (1968). The call to California: : the epic journey of the Portola-Serra expedition in 1769. Union-Tribune Publishing.

Chicago Style (17th ed.) Citation

Pourade, Richard F. The Call to California: : The Epic Journey of the Portola-Serra Expedition in 1769. San Diego: Union-Tribune Publishing, 1968.

MLA (9th ed.) Citation

Pourade, Richard F. The Call to California: : The Epic Journey of the Portola-Serra Expedition in 1769. Union-Tribune Publishing, 1968.