National Seminar on Forestry Extension. (1992). Proceedings of National Seminar on Forestry Extension held on 12th and 13th November, 1992 at Thiruvananthapuram. Forest Department, Government of Kerala.

National Seminar on Forestry Extension. Proceedings of National Seminar on Forestry Extension Held on 12th and 13th November, 1992 at Thiruvananthapuram. Kerala: Forest Department, Government of Kerala, 1992.

National Seminar on Forestry Extension. Proceedings of National Seminar on Forestry Extension Held on 12th and 13th November, 1992 at Thiruvananthapuram. Forest Department, Government of Kerala, 1992.