@book{5917,
	author = {Niven, Ivan Morton, and Zuckerman, Herbert S.},
	title = {An introduction to the theory of numbers /},
	publisher = {Wiley,},
	year = {c1991.},
	address = {New York :},
	edition = {5th ed.},
	url = {http://www.loc.gov/catdir/description/wiley033/90013013.html}
}