(1973). Focuson environmental geology: A collection of case histories and readings from original sources. New York: Oxford University Press.
Chicago-стиль цитированияFocuson Environmental Geology: A Collection of Case Histories and Readings From Original Sources. New York: Oxford University Press, 1973.
MLA-цитированиеFocuson Environmental Geology: A Collection of Case Histories and Readings From Original Sources. New York: Oxford University Press, 1973.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.