Παραπομπή APA

Kerala. Directorate of Census Operations; Author. (1998). Migration tables: Census of Kerala 1991.

Παραπομπή Chicago Style

Kerala. Directorate of Census Operations; Author. Migration Tables: Census of Kerala 1991. Thiruvanathapuram, Directorate of Census Operations, 1998.

Παραπομπή MLA

Kerala. Directorate of Census Operations; Author. Migration Tables: Census of Kerala 1991. 1998.