@book{1215758,
	author = {Harris Daniel C},
	title = {Quantitative chemical analysis},
	publisher = {York W H Freeman and company     },
	year = {2007},
	address = {New},
	edition = {7},
	note = {Bibliographical references NR1-NR19p; Glossary GL1-GL21p; Appendix A-K AP1-AP33p}
}