@book{1062,
	title = {Chemistry Students' book.2.:Topics 13 to 19},
	publisher = {Longman,},
	year = {1970.},
	address = {[S.l.] :},
	note = {Import.},
	url = {http://www.amazon.com/exec/obidos/ASIN/0582826527/chopaconline-20}
}