Παραπομπή APA

Johnson, D. (1967). Stream sculpture on the atlantic slope: A study in the evolution of appalachian rivers. Hafner.

Παραπομπή Chicago Style

Johnson, Douglas. Stream Sculpture on the Atlantic Slope: A Study in the Evolution of Appalachian Rivers. New York: Hafner, 1967.

Παραπομπή MLA

Johnson, Douglas. Stream Sculpture on the Atlantic Slope: A Study in the Evolution of Appalachian Rivers. Hafner, 1967.