Hillman, Abraham P. A first undergraduate course in abstract algebra. - 3rd ed. - Belmont, Calif : Wadsworth Pub. Co, c1983. - ix, 501 pages ; 25 cm. Includes index. Bibliography: p. 457-465. ISBN: 0534011950 19.95 Subjects--Topical Terms: Algebra, Abstract. LC Class. No.: QA162 HIL