APA (7th ed.) Citation

Loeltz, O. J. (1975). Geohydrologic reconnaissance of the Imperial Valley, California. U.S. Govt. Print. Off.

Chicago Style (17th ed.) Citation

Loeltz, O. J. Geohydrologic Reconnaissance of the Imperial Valley, California. Washington: U.S. Govt. Print. Off, 1975.

MLA (9th ed.) Citation

Loeltz, O. J. Geohydrologic Reconnaissance of the Imperial Valley, California. U.S. Govt. Print. Off, 1975.