Columbia subject headings:
Harvard subject headings:
California--History--Bibliography.
Cowan, Robert Ernest, 1862-1942. Bibliography of California and the Pacific West, 1510-1906.
Cowan, Robert Ernest, 1862-1942. Bibliography of the history of California and the Pacific West, 1510-1906.
Pacific States--History--Bibliography.
Princeton subject headings:
California--History--Bibliography.
Cowan, Robert Ernest, 1862-1942. Bibliography of the history of California and the Pacific West, 1510-1906.
Pacific States--History--Bibliography.