Citazione APA

Census of India. (1991). District Census Hand Book: Kollam. Directorate of Census Operations.

Stile di citazione Chicago

Census of India. District Census Hand Book: Kollam. Thiruvananthapuram: Directorate of Census Operations, 1991.

Citazione MLA

Census of India. District Census Hand Book: Kollam. Directorate of Census Operations, 1991.