The guns of San Diego :
San Diego harbor defenses, 1796-1947 : historic resource study, Cabrillo national Monument /
by Erwin N. Thompson ; edited by Howard B. Overton

APA Citation

Thompson, E. N., Overton, H. B., United States. National Park Service. (1991). The guns of San Diego: San Diego harbor defenses, 1796-1947 : historic resource study, Cabrillo national Monument. San Diego: National Park Service.

MLA Citation

Thompson, Erwin N, Howard B Overton, and United States. National Park Service. The Guns of San Diego: San Diego Harbor Defenses, 1796-1947 : Historic Resource Study, Cabrillo National Monument. San Diego: National Park Service, 1991.

Warning: These citations may not always be complete (especially for serials).