APA aipamena

Gurmel singh & Venkataramanan, C. (1990). Manual of soil andwater conservation practices. Oxford and IBH publishing.

Chicago Style aipamena

Gurmel singh and C. Venkataramanan. Manual of Soil Andwater Conservation Practices. New Delhi: Oxford and IBH publishing, 1990.

MLA aipamena

Gurmel singh and C. Venkataramanan. Manual of Soil Andwater Conservation Practices. Oxford and IBH publishing, 1990.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.