@book{336,
	author = {Skoog, Douglas A. and Holler, F. James.},
	title = {Principles of instrumental analysis, 5th edition /},
	publisher = {Brooks Cole,},
	year = {1997.},
	address = {New York},
	edition = {5th ed.},
	url = {http://www.amazon.com/exec/obidos/ASIN/0030020786/chopaconline-20}
}