Cita APA (7a ed.)

Alt, D. D., & Hyndman, D. W. (1972). Roadside geology of the northern Rockies. Mountain Press Pub. Co.

Cita Chicago Style (17a ed.)

Alt, David D., y Donald W. Hyndman. Roadside Geology of the Northern Rockies. Missoula, Mont.: Mountain Press Pub. Co, 1972.

Cita MLA (8a ed.)

Alt, David D., y Donald W. Hyndman. Roadside Geology of the Northern Rockies. Mountain Press Pub. Co, 1972.

Precaución: Estas citas no son 100% exactas.