Rubber Research Institute of India & Indian Council of Agricultural Research. National Bureau of Soil Survey and Land Use Planning. (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. National Bureau of Soil Survey and Land Use Planning.
Chicago Style (17th ed.) CitationRubber Research Institute of India and Indian Council of Agricultural Research. National Bureau of Soil Survey and Land Use Planning. 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: National Bureau of Soil Survey and Land Use Planning, 1999.
MLA (9th ed.) CitationRubber Research Institute of India and Indian Council of Agricultural Research. National Bureau of Soil Survey and Land Use Planning. 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. National Bureau of Soil Survey and Land Use Planning, 1999.