APA-referens

(1997). Census of India 1991. Directorate of census operations.

Chicago-stil citat

Census of India 1991. Trivandrum: Directorate of census operations, 1997.

MLA-referens

Census of India 1991. Directorate of census operations, 1997.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.