Cita APA

Peter W Birkeland. (1984). Soils and geomorphology. New York: Oxford University.

Chicago Style Citation

Peter W Birkeland. Soils and Geomorphology. New York: Oxford University, 1984.

Cita MLA

Peter W Birkeland. Soils and Geomorphology. New York: Oxford University, 1984.

Atenció: Aquestes cites poden no estar 100% correctes.