Punjab. Directorate of Census Operations, N. D. (1999). Census of India 1991: Series 20: Punjab. Controller of Pub.
Style de citation Chicago (17e éd.)Punjab. Directorate of Census Operations, New Delhi. Census of India 1991: Series 20: Punjab. Controller of Pub, 1999.
Style de citation MLA (9e éd.)Punjab. Directorate of Census Operations, New Delhi. Census of India 1991: Series 20: Punjab. Controller of Pub, 1999.
Attention : ces citations peuvent ne pas être correctes à 100%.