APA (7th ed.) Zitazioa

Morgan, R. P. C. (1995). Soil erosion and conservation (2nd ed.). Longman ; J. Wiley.

Chicago Style (17th ed.) Zitazioa

Morgan, R. P. C. Soil Erosion and Conservation. 2nd ed. Harlow, Essex, England : New York, NY: Longman ; J. Wiley, 1995.

MLA (9th ed.) Zitazioa

Morgan, R. P. C. Soil Erosion and Conservation. 2nd ed. Longman ; J. Wiley, 1995.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.