TY  - BOOK
AU  - Rotman,Joseph J.
TI  - An introduction to homological algebra .-2nd ed.
T2  - Universitext
SN  - 9780387245270 (acidfree paper)
PY  - 2009///
CY  - New York, NY
PB  - Springer
KW  - Algebra, Homological
ER  -