APA
(1967). Rubber Board Aavarthana Krishi Sahayadhana Padhathi. Kottayam: Rubber Research Institute of India.
Chicago
1967. Rubber Board Aavarthana Krishi Sahayadhana Padhathi. Kottayam: Rubber Research Institute of India.
Harvard
(1967). Rubber Board Aavarthana Krishi Sahayadhana Padhathi. Kottayam: Rubber Research Institute of India.
MLA
Rubber Board Aavarthana Krishi Sahayadhana Padhathi. Kottayam: Rubber Research Institute of India. 1967.
