Lang, Serge,. Algebra Textual Documents - 3rd. - New York: Addison-Wesley Publishing Company, 1993. - XV,912p.: 08815. English. ISBN: 0-201-55540-9 Subjects--Uniform Titles: Algebra; Groups; Rings. Subjects--Index Terms: Polynomials,Rings,Commutative Rings,Cyclic Groups,Snake Lemma,Galois Theory Dewey Class. No.: 512 LAN