@book{850,
	author = {Demmin, Peter E.},
	title = {Prentice hall chemistry :The study of matter},
	publisher = {Prentice Hall, ;,},
	year = {1993.},
	series = {small-scale laboratory manual},
	address = {New York},
	url = {http://www.amazon.com/exec/obidos/ASIN/0131317644/chopaconline-20}
}