@book{615875,
	author = {Kreyszig, Erwin.},
	title = {Advanced engineering mathematics /},
	publisher = {Wiley,},
	year = {c1993.},
	address = {New York :},
	edition = {Fifth Edition},
	url = {http://www.loc.gov/catdir/toc/onix05/92006989.html}
}