APA aipamena

NULL. (1992). ENVIRONMENTAL AGRICULTURAL POLLUTION (I.). AKASHDEEP PUBLISHING HOUSE.

Chicago Style aipamena

NULL. ENVIRONMENTAL AGRICULTURAL POLLUTION. I. INDIA: AKASHDEEP PUBLISHING HOUSE, 1992.

MLA aipamena

NULL. ENVIRONMENTAL AGRICULTURAL POLLUTION. I. AKASHDEEP PUBLISHING HOUSE, 1992.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.