Cita APA

Cotton, C. A. (1969). Volcanoes as landscape forms. New York: Hafner Pub. Co..

Citación estilo Chicago

Cotton, C A. Volcanoes As Landscape Forms. New York: Hafner Pub. Co., 1969.

Cita MLA

Cotton, C A. Volcanoes As Landscape Forms. New York: Hafner Pub. Co., 1969.