Punjab (India). Economic and Statistical Organisation. (1975). Report on the aerial spray programme of cotton in Punjab. Issued by Economic Adviser to Govt., Punjab.
Chicago-referens (17:e uppl.)Punjab (India). Economic and Statistical Organisation. Report on the Aerial Spray Programme of Cotton in Punjab. Chandigarh: Issued by Economic Adviser to Govt., Punjab, 1975.
MLA-referens (8:e uppl.)Punjab (India). Economic and Statistical Organisation. Report on the Aerial Spray Programme of Cotton in Punjab. Issued by Economic Adviser to Govt., Punjab, 1975.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.