@book{13726,
	author = {Tuma, Jan J.},
	title = {Engineering mathematics handbook /},
	publisher = {McGraw-Hill Professional,},
	year = {1997.},
	address = {[S.l.] :},
	edition = {4th ed.},
	url = {http://www.amazon.com/exec/obidos/ASIN/0070655294/chopaconline-20}
}