TY  - GEN
AU  - Rotman,Joseph J
TI  - An introduction to homological algebra
T2  - Universitext
SN  - 9780387245270 (acid-free paper)
U1  - 512/.64 
PY  - 2009///
CY  - New York, NY
PB  - Springer
KW  - Algebra, Homological
N1  - Contine bibliografie si index
ER  -