@book{26355,
	author = {Edwards, C. H. and Penney, David E.},
	title = {Differential equations and boundary value problems :},
	publisher = {Pearson Prentice Hall,},
	year = {c2008.},
	address = {Upper Saddle River, NJ :},
	edition = {4th ed.},
	note = {Previous ed.: Upper Saddle River, NJ : Pearson Education, c2004.}
}