APA
(1963). Directory of Rubber Estates and Holdings in India. Kottayam: Rubber Research Institute of India.
Chicago
1963. Directory of Rubber Estates and Holdings in India. Kottayam: Rubber Research Institute of India.
Harvard
(1963). Directory of Rubber Estates and Holdings in India. Kottayam: Rubber Research Institute of India.
MLA
Directory of Rubber Estates and Holdings in India. Kottayam: Rubber Research Institute of India. 1963.
