SINGH, S. (2007). Farm machinery: Principles and applications. Directorate of Information and Publications on Agriculture, Indian Council of Agricultural Research.
Lua i Stíl Chicago (17ú heag.)SINGH, Surendra. Farm Machinery: Principles and Applications. Directorate of Information and Publications on Agriculture, Indian Council of Agricultural Research, 2007.
Lua MLA (9ú heag.)SINGH, Surendra. Farm Machinery: Principles and Applications. Directorate of Information and Publications on Agriculture, Indian Council of Agricultural Research, 2007.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.