APA

Malabika Ray et al, . (1990). Environmental protection and afforestation : national seminar on environmental protection ( with special emphasis on afforestation ) proceedings of symposium held in Santiniketan, India, 4-6 Semptemper 1998 : recent researches in ecology, environment. New Delhi: Today and Tomarrows Printers and Publishers.

Chicago

Malabika Ray et al, . 1990. Environmental protection and afforestation : national seminar on environmental protection ( with special emphasis on afforestation ) proceedings of symposium held in Santiniketan, India, 4-6 Semptemper 1998 : recent researches in ecology, environment. New Delhi: Today and Tomarrows Printers and Publishers.

Harvard

Malabika Ray et al, . (1990). Environmental protection and afforestation : national seminar on environmental protection ( with special emphasis on afforestation ) proceedings of symposium held in Santiniketan, India, 4-6 Semptemper 1998 : recent researches in ecology, environment. New Delhi: Today and Tomarrows Printers and Publishers.

MLA

Malabika Ray et al, . Environmental protection and afforestation : national seminar on environmental protection ( with special emphasis on afforestation ) proceedings of symposium held in Santiniketan, India, 4-6 Semptemper 1998 : recent researches in ecology, environment. New Delhi: Today and Tomarrows Printers and Publishers. 1990.