@book{15608,
	author = {Schenk, George H. and Hahn, Richard Balser,},
	title = {Introduction to analytical chemistry /},
	publisher = {Allyn and Bacon,},
	year = {c1981.},
	address = {Boston :},
	edition = {2d ed.},
	note = {First ed. published in 1977 under title: Quantitative analytical chemistry.}
}