Cita APA (7a ed.)

Bracksieck, G., & Blair, R. (2011). The Eastern San Juan Mountains: Their Ecology, Geology, and Human History. Mountain Studies Institute/San Juan Collaboratory.

Cita Chicago Style (17a ed.)

Bracksieck, George, y Rob Blair. The Eastern San Juan Mountains: Their Ecology, Geology, and Human History. Boulder, Colo.: Mountain Studies Institute/San Juan Collaboratory, 2011.

Cita MLA (8a ed.)

Bracksieck, George, y Rob Blair. The Eastern San Juan Mountains: Their Ecology, Geology, and Human History. Mountain Studies Institute/San Juan Collaboratory, 2011.