Das Gupta, D. K. (1998). Technical paper on irrigation for the state of West Bengal. Agro-Climatic Regional Planning Unit, Planning Commission.
Chicago-referens (17:e uppl.)Das Gupta, Dilip Kumar. Technical Paper on Irrigation for the State of West Bengal. Ahmedabad: Agro-Climatic Regional Planning Unit, Planning Commission, 1998.
MLA-referens (8:e uppl.)Das Gupta, Dilip Kumar. Technical Paper on Irrigation for the State of West Bengal. Agro-Climatic Regional Planning Unit, Planning Commission, 1998.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.