@book{67506,
	author = {Duffy, Dean G.},
	title = {Advanced engineering mathematics /},
	publisher = {Chapman & Hall/CRC,},
	year = {2003.},
	address = {Boca Raton, Fla. ;},
	edition = {Second edition.},
	note = {Previous edition: 1998.},
	url = {https://www.taylorfrancis.com/books/9781003272205}
}