APA aipamena

(2009). SOIL ECOLOGY IN SUSTAINABLE AGRICULTURAL SYSTEMS. CRC Press.

Chicago Style aipamena

SOIL ECOLOGY IN SUSTAINABLE AGRICULTURAL SYSTEMS. CRC Press, 2009.

MLA aipamena

SOIL ECOLOGY IN SUSTAINABLE AGRICULTURAL SYSTEMS. CRC Press, 2009.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.