The physiography of Arizona valleys and the occurrence of groundwater /
by G. E. P. Smith.

APA Citation

Smith, G. E. P. (George Edson Philip). (1938). The physiography of Arizona valleys and the occurrence of groundwater. Tucson, Ariz.: University of Arizona.

MLA Citation

Smith, G. E. P. (George Edson Philip), 1873-. The Physiography of Arizona Valleys And the Occurrence of Groundwater. Tucson, Ariz.: University of Arizona, 1938.

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