Adler A., Coury J.E. The Theory of Numbers: A Text and Source Book of Problems

Sudbury: Jones and Bartlett, 1995. — 402 p. — ISBN: 0-86720-472-9.International edition.This book presents the principal ideas of classical elementary number theory, emphasizing the historical development of these results and the important figures who worked on them. This book is also intended to introduce students to mathematical prooves by presenting them in a clear and simple way and by providing complete, step-by-step solutions to the problems with as much detail as students would be expected to provide themselves. Throughout, we have tried to indicate the important ideas in a proof or numerical technique and to show the students computational shortcuts whenever possible.