Chadha, G. K. (1979). Production gains of new agricultural technology: A farm size-wise analysis of Punjab experience. Publication Bureau, Panjab University.
Lua i Stíl Chicago (17ú heag.)Chadha, G. K. Production Gains of New Agricultural Technology: A Farm Size-wise Analysis of Punjab Experience. Chandigarh: Publication Bureau, Panjab University, 1979.
Lua MLA (8ú heag.)Chadha, G. K. Production Gains of New Agricultural Technology: A Farm Size-wise Analysis of Punjab Experience. Publication Bureau, Panjab University, 1979.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.