@book{26199,
	author = {Elaydi, Saber},
	title = {An introduction to difference equations},
	publisher = {Springer Science+Business Media, Inc.,},
	year = {2005},
	series = {Undergraduate texts in Mathematics},
	address = {New York:},
	edition = {3rd},
	note = {"Purchased under NBHM grant for the year 2005-2006"}
}