Cita APA (7a ed.)

Pratt, O. C. (1945). The geology of Spokane and of the Inland Empire. s.n.].

Cita Chicago Style (17a ed.)

Pratt, Orville C. The Geology of Spokane and of the Inland Empire. [Washington State: s.n.], 1945.

Cita MLA (8a ed.)

Pratt, Orville C. The Geology of Spokane and of the Inland Empire. s.n.], 1945.

Precaución: Estas citas no son 100% exactas.