APA Citatie

(1973). Focuson environmental geology: A collection of case histories and readings from original sources. New York: Oxford University Press.

Chicago Style citaat

Focuson Environmental Geology: A Collection of Case Histories and Readings From Original Sources. New York: Oxford University Press, 1973.

MLA citatie

Focuson Environmental Geology: A Collection of Case Histories and Readings From Original Sources. New York: Oxford University Press, 1973.