APA
(1970). Aerial Spraying of Cotton in Punjab State. Chandigarh: Agricultural Information Service.
Chicago
1970. Aerial Spraying of Cotton in Punjab State. Chandigarh: Agricultural Information Service.
Harvard
(1970). Aerial Spraying of Cotton in Punjab State. Chandigarh: Agricultural Information Service.
MLA
Aerial Spraying of Cotton in Punjab State. Chandigarh: Agricultural Information Service. 1970.
