Prabhu Pingali and Robert Evenson. (2010). Handbook of Agricultural Economics. ELSEVIER.
Lua i Stíl Chicago (17ú heag.)Prabhu Pingali and Robert Evenson. Handbook of Agricultural Economics. ELSEVIER, 2010.
Lua MLA (8ú heag.)Prabhu Pingali and Robert Evenson. Handbook of Agricultural Economics. ELSEVIER, 2010.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.