@book{7529,
	author = {Maran, Ruth.},
	title = {Microsoft excel 97 simplified /},
	publisher = {Wiley,},
	year = {1997.},
	series = {Simplified (wiley)},
	address = {[S.l.] :},
	edition = {1st ed.},
	url = {http://www.amazon.com/exec/obidos/ASIN/0764560220/chopaconline-20}
}