Citação norma APA

Kerala. Directorate of Census Operations; Author. (1983). District census handbook 1981: Quilon district: Census of Kerala 1981.

Citação norma Chicago

Kerala. Directorate of Census Operations; Author. District Census Handbook 1981: Quilon District: Census of Kerala 1981. Kerala, Director of Census Operations, 1983.

Citação norma MLA

Kerala. Directorate of Census Operations; Author. District Census Handbook 1981: Quilon District: Census of Kerala 1981. 1983.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.