@book{631,
	author = {Sullivan, Richard.},
	title = {Practical problems in mathematics for electronics technicians /},
	publisher = {Delmar Publishers,},
	year = {1991.},
	series = {Practical problems in mathematics series.},
	address = {[S.l.] :},
	edition = {2nd ed.},
	url = {http://www.amazon.com/exec/obidos/ASIN/0827340338/chopaconline-20}
}