Brady, N. C. (1974). Nature and properties of soils. Macmillan.
Chicago Style aipamenaBrady, N C. Nature and Properties of Soils. New York: Macmillan, 1974.
MLA aipamenaBrady, N C. Nature and Properties of Soils. Macmillan, 1974.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.