Niven, Ivan An introduction to the theory of numbers / Ivan Niven and Herbert S. Zuckerman - 3rd ed. - New Delhi: Wiley Eastern, 1972. - xii, 288 p : ill. ; 23 cm. Includes bibliographical references. ISBN: 0852266038 Subjects--Topical Terms: Mathematics.Number theory. Dewey Class. No.: 512.7 / NIV