Geramita, A. V. Introduction to homological methods in commutative rings/ by Anthony V. Geramita and Charles Small. - Kingston, Ont.: Queen's University, 1976. - 352 p. ; 28 cm. - Queen's papers in pure and applied mathematics; no. 43. . Includes bibliographical references (p. 336-352). LCCN: 96218748 Subjects--Topical Terms: Commutative rings.Algebra, Homological.