Burton, David M. Elementary number theory / David M. Burton. - 7th ed., International ed. - Boston : McGraw-Hill, Higher Education, c2011. - xii, 436 p. : ill. ; 24 cm. Includes bibliographical references and index. ISBN: 9780071289191 (pbk) LCCN: 2009-044311 Subjects--Topical Terms: Number theory. Dewey Class. No.: 512.7/2