Παραπομπή APA

Land Use Board. (1996). Watershed atlas: Chalakudy river. Kerala State Land Use Board.

Παραπομπή Chicago Style

Land Use Board. Watershed Atlas: Chalakudy River. Thiruvananthapuram: Kerala State Land Use Board, 1996.

Παραπομπή MLA

Land Use Board. Watershed Atlas: Chalakudy River. Kerala State Land Use Board, 1996.