@book{1718,
	author = {Malabika Ray et al.},
	title = {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},
	publisher = {Today and Tomarrows Printers and Publishers},
	year = {1990},
	address = {New Delhi}
}