@book{1208881,
	author = {Botkin Daniel B and  Keller Edward A},
	title = {Environmental science},
	publisher = {delhi Wiley         },
	year = {2014},
	address = {New},
	edition = {8},
	note = {Appendix A1-A6p.; Glossary G1-G20 p..; Index I1-I11p.; Reprint 2014}
}