APA (7e ed.) Bronvermelding

Não informado. (1971). Journal of Agricultural Research. Government of the Punjab, Department of Agriculture.

Chicago (17e ed.) Bronvermelding

Não informado. Journal of Agricultural Research. Lahore, Paquistao: Government of the Punjab, Department of Agriculture, 1971.

MLA (8e ed.) Bronvermelding

Não informado. Journal of Agricultural Research. Government of the Punjab, Department of Agriculture, 1971.

Let op: Deze citaties zijn niet altijd 100% accuraat.