@book{329568,
	author = {Edwards, C. Henry and Penney, David E.},
	title = {Elementary differential equations with boundary value problems /},
	publisher = {Pearson/Prentice Hall,},
	year = {c2008.},
	address = {Upper Saddle River, NJ :},
	edition = {6th ed. /},
	note = {Includes index.}
}