Cita APA

Christiansen, R. L., & Christiansen, R. L. (2001). The quaternary and pliocene Yellowstone Plateau Volcanic field of Wyoming, Idaho, and Montana. Reston, Va.: U.S. Geological Survey.

Citación estilo Chicago

Christiansen, Robert L., y Robert L. Christiansen. The Quaternary and Pliocene Yellowstone Plateau Volcanic Field of Wyoming, Idaho, and Montana. Reston, Va.: U.S. Geological Survey, 2001.

Cita MLA

Christiansen, Robert L., y Robert L. Christiansen. The Quaternary and Pliocene Yellowstone Plateau Volcanic Field of Wyoming, Idaho, and Montana. Reston, Va.: U.S. Geological Survey, 2001.