Rings and homology / by James P. Jans. Jans, James Patrick, 1927- Rings (Algebra) Algebra, Homological. QA247 .J35 512.815 JAR Includes bibliographical references and index. New York ; Holt, Rinehart and Winston, 1964. 1964. 1964 Text vii, 88 p. ; eng Athena series; selected topics in mathematics