APA
(1990). Planters' Conference India, 19 April 1990, Kottayam, India. Kottayam: Rubber Research Institute of India.
Chicago
1990. Planters' Conference India, 19 April 1990, Kottayam, India. Kottayam: Rubber Research Institute of India.
Harvard
(1990). Planters' Conference India, 19 April 1990, Kottayam, India. Kottayam: Rubber Research Institute of India.
MLA
Planters' Conference India, 19 April 1990, Kottayam, India. Kottayam: Rubber Research Institute of India. 1990.
