@book{29334,
	author = {Singh, Sanjiv Kumar.},
	title = {Environmental Sciences : UGC-NET/ SLET national educational test for junior research fellowship and eligibility for lectureship, question bank of objective type questions , condensed study material / },
	publisher = {: Cosmos Bookhive},
	year = {, nd.},
	address = {.- Gurgaon}
}