APA

Annamma Y, Licy J & Panikkar A.O.N. (1990). Genetic improvement in Hevea: Achievements, problems and perspectives. : National Symposium on New trends in Crop Improvement of Perennial Species, 30 August 1990, Rubber Research Institute of India, Kottayam, India.

Chicago

Annamma Y, Licy J and Panikkar A.O.N. 1990. Genetic improvement in Hevea: Achievements, problems and perspectives. : National Symposium on New trends in Crop Improvement of Perennial Species, 30 August 1990, Rubber Research Institute of India, Kottayam, India.

Harvard

Annamma Y, Licy J and Panikkar A.O.N. (1990). Genetic improvement in Hevea: Achievements, problems and perspectives. : National Symposium on New trends in Crop Improvement of Perennial Species, 30 August 1990, Rubber Research Institute of India, Kottayam, India.

MLA

Annamma Y, Licy J and Panikkar A.O.N. Genetic improvement in Hevea: Achievements, problems and perspectives. : National Symposium on New trends in Crop Improvement of Perennial Species, 30 August 1990, Rubber Research Institute of India, Kottayam, India. 1990.