@book{2171,
	author = {Norman,R.O.C. and Waddington,D.J.},
	title = {Modern organic chemistry },
	publisher = {Mills & Boon Limited/CollinsEducational,},
	year = {1972},
	address = {London},
	edition = {4 e},
	note = {Import.},
	url = {http://www.amazon.com/exec/obidos/ASIN/0003223434/chopaconline-20}
}