Cita APA (7th ed.)

Webber, P. J. (1979). High altitude geoecology. Westview Press.

Cita Chicago (17th ed.)

Webber, Patrick J. High Altitude Geoecology. Boulder: Westview Press, 1979.

Cita MLA (9th ed.)

Webber, Patrick J. High Altitude Geoecology. Westview Press, 1979.