@book{4297,
	author = {Shaik, Sason S., and Hiberty, Philippe C. and ebrary, Inc.},
	title = {A chemist's guide to valence bond theory},
	publisher = {Wiley-Interscience,},
	year = {c2008.},
	address = {Hoboken, N.J. :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10278369}
}