APA aipamena

Drew, J. (1967). Selected papers in soil formation and classification. S.S.S.A. Special.

Chicago Style aipamena

Drew, J. Selected Papers in Soil Formation and Classification. S.S.S.A. Special, 1967.

MLA aipamena

Drew, J. Selected Papers in Soil Formation and Classification. S.S.S.A. Special, 1967.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.