APA
(1999). Resource soil survey and mapping of rubber growing soils of Kerala and Tamil Nadu on 1:50,000 scale: Consultancy Project for rubber research Institute of India, Rubber Board, Kottayam. Nagpur: NBSS and Land Use.
Chicago
1999. Resource soil survey and mapping of rubber growing soils of Kerala and Tamil Nadu on 1:50,000 scale: Consultancy Project for rubber research Institute of India, Rubber Board, Kottayam. Nagpur: NBSS and Land Use.
Harvard
(1999). Resource soil survey and mapping of rubber growing soils of Kerala and Tamil Nadu on 1:50,000 scale: Consultancy Project for rubber research Institute of India, Rubber Board, Kottayam. Nagpur: NBSS and Land Use.
MLA
Resource soil survey and mapping of rubber growing soils of Kerala and Tamil Nadu on 1:50,000 scale: Consultancy Project for rubber research Institute of India, Rubber Board, Kottayam. Nagpur: NBSS and Land Use. 1999.