SINGH SUKHPAL. (2005). POLITICAL ECONOMY OF CONTRACT FARMING IN INDIA. ALLIED PUBLISHERS PVT.LIMITED.
Lua i Stíl Chicago (17ú heag.)SINGH SUKHPAL. POLITICAL ECONOMY OF CONTRACT FARMING IN INDIA. NEW DELHI: ALLIED PUBLISHERS PVT.LIMITED, 2005.
Lua MLA (9ú heag.)SINGH SUKHPAL. POLITICAL ECONOMY OF CONTRACT FARMING IN INDIA. ALLIED PUBLISHERS PVT.LIMITED, 2005.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.