@book{1693,
	author = {Lakshmi, G. V. S. and Subbaiah, G L },
	title = {Methods of Teaching Environmental Science /},
	publisher = {Discovery Publishing  Pvt.Ltd,},
	address = {[S.l.] :},
	url = {http://www.amazon.com/exec/obidos/ASIN/8171418392/chopaconline-20}
}