TY  - BOOK
AU  - Rotman, Joseph J.
TI  - An introduction to homological algebra [2nd ed.]
T2  - Universitext
SN  - 9780387245270
U1  - 512.64 
PY  - 2009///
CY  - New York
PB  - Springer
KW  - Algebra, Homological
KW  - Mathematics
ER  -