Punjab (India). Economic and Statistical Organisation. (1973). Report on the evaluation survey of soil conservation and water management programme in Punjab.
Chicago-referens (17:e uppl.)Punjab (India). Economic and Statistical Organisation. Report on the Evaluation Survey of Soil Conservation and Water Management Programme in Punjab. Chandigarh, 1973.
MLA-referens (8:e uppl.)Punjab (India). Economic and Statistical Organisation. Report on the Evaluation Survey of Soil Conservation and Water Management Programme in Punjab. 1973.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.