000
00264nam a2200109 4500
008
160616s 000 0
245
_a
Introduction to homological algebra
100
_a
Rotman, Joseph J
500
_a
B3162 L9
942
_c
BK
_2
BK29
_0
2
080
_a
516.143 ROT
999
_c
29
_d
29