Elementary Number Theory (Springer Undergraduate Mathematics Series)
From the reviews:BULLETIN OF MATHEMATICS BOOKS"?as a nice concluding chapter on Fermat? Last Theorem, with a brief discussion on the coup de grace." G.A. Jones and J.M. JonesElementary Number Theory"A welcome addition . . . a carefully and well-written book."—THE MATHEMATICAL GAZETTE"This book would make an excellent text for an undergraduate course on number theory."—MATHEMATICAL REVIEWS