APA-referens (7:e uppl.)
Ray, S. (1992). Technological development of agriculture in West Bengal since independence. Firma KLM.
Chicago-referens (17:e uppl.)
Ray, Siddheswar. Technological Development of Agriculture in West Bengal Since Independence. Calcutta: Firma KLM, 1992.
MLA-referens (9:e uppl.)
Ray, Siddheswar. Technological Development of Agriculture in West Bengal Since Independence. Firma KLM, 1992.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.