APA-referens (7:e uppl.)

Cowan, R. E., & Dwinelle, J. W. (1914). Bibliography of the history of California and the Pacific West 1510-1906. Book Club of California.

Chicago-referens (17:e uppl.)

Cowan, Robert Ernest, och John W. Dwinelle. Bibliography of the History of California and the Pacific West 1510-1906. San Francisco: Book Club of California, 1914.

MLA-referens (8:e uppl.)

Cowan, Robert Ernest, och John W. Dwinelle. Bibliography of the History of California and the Pacific West 1510-1906. Book Club of California, 1914.