Introduction to number theory / William W. Adams, Larry Joel Goldstein. Adams, William W. (William Wells), 1937- Goldstein, Larry Joel, joint author. Number theory. QA241 .A24 512.7 ADI Includes index. Englewood Cliffs, N.J. : Prentice-Hall, c1976. c1976. 1976 Text xiii, 362 p. ; eng