TY  - BOOK
AU  - Northeott,D.G.
TI  - An Introduction to homological algebra
U1  - 512.8 
PY  - 1960///
CY  - Cambridge
PB  - The University Press
KW  - Algebra, Abstract
KW  - Homology theory
KW  - Catagories (Mathematics)
N1  - Includes bibliographical references and index
ER  -