APA
(1980). International Rubber Conference India 1980, 23-28 November 1980, Kottayam, India. Kottayam: Rubber Research Institute of India.
Chicago
1980. International Rubber Conference India 1980, 23-28 November 1980, Kottayam, India. Kottayam: Rubber Research Institute of India.
Harvard
(1980). International Rubber Conference India 1980, 23-28 November 1980, Kottayam, India. Kottayam: Rubber Research Institute of India.
MLA
International Rubber Conference India 1980, 23-28 November 1980, Kottayam, India. Kottayam: Rubber Research Institute of India. 1980.
