books.google.com - This book has a clear and thorough exposition of the classical theory of algebraic numbers, and contains a large number of exercises as well as worked out numerical examples. The introduction is a recapitulation of results about principal ideal domains, unique factorization domains and commutative fields....http://books.google.com/books/about/Classical_Theory_of_Algebraic_Numbers.html?id=u5443xdaNZcC&utm_source=gb-gplus-shareClassical Theory of Algebraic Numbers
