APA-viite

Bapna, S. L. (1980). Aggregate supply response of crops in a developing region.

Chicago-tyylinen lähdeviittaus

Bapna, S L. Aggregate Supply Response of Crops in a Developing Region. Sultan Chand & Sons, New Delhi, 1980.

MLA-viite

Bapna, S L. Aggregate Supply Response of Crops in a Developing Region. 1980.