APA aipamena

Prabhu Pingali and Robert Evenson. (2010). Handbook of Agricultural Economics. ELSEVIER.

Chicago Style aipamena

Prabhu Pingali and Robert Evenson. Handbook of Agricultural Economics. ELSEVIER, 2010.

MLA aipamena

Prabhu Pingali and Robert Evenson. Handbook of Agricultural Economics. ELSEVIER, 2010.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.