SINGH, S. (2007). Farm machinery: Principles and applications. Directorate of Information and Publications on Agriculture, Indian Council of Agricultural Research.
Chicago-referens (17:e uppl.)SINGH, Surendra. Farm Machinery: Principles and Applications. Directorate of Information and Publications on Agriculture, Indian Council of Agricultural Research, 2007.
MLA-referens (9:e uppl.)SINGH, Surendra. Farm Machinery: Principles and Applications. Directorate of Information and Publications on Agriculture, Indian Council of Agricultural Research, 2007.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.