APA

Vijayan Unni M., . (1981). Census of India 1981: Series 10: (Kerala), Paper7: Houses and disabled persons report and tables. : Director of Census Operations Kerala.

Chicago

Vijayan Unni M, . 1981. Census of India 1981: Series 10: (Kerala), Paper7: Houses and disabled persons report and tables. : Director of Census Operations Kerala.

Harvard

Vijayan Unni M., . (1981). Census of India 1981: Series 10: (Kerala), Paper7: Houses and disabled persons report and tables. : Director of Census Operations Kerala.

MLA

Vijayan Unni M, . Census of India 1981: Series 10: (Kerala), Paper7: Houses and disabled persons report and tables. : Director of Census Operations Kerala. 1981.