Foth, H. D. (1997). Soil fertility. New York: Lewis Publishers.
Chicago Style aipamenaFoth, Henry D. Soil Fertility. New York: Lewis Publishers, 1997.
MLA aipamenaFoth, Henry D. Soil Fertility. New York: Lewis Publishers, 1997.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.