APA (7th ed.) Zitazioa
Kolay, A. K. (2000). Basics concepts of soil science (2nd ed.). New Age International.
Chicago Style (17th ed.) Zitazioa
Kolay, A. K. Basics Concepts of Soil Science. 2nd ed. Kolkata: New Age International, 2000.
MLA (9th ed.) Zitazioa
Kolay, A. K. Basics Concepts of Soil Science. 2nd ed. New Age International, 2000.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.