TY  - BOOK
AU  - Herstein, i.n. 
TI  - Topics in algebra
SN  - 9788126510184
U1  - 512 HER 
PY  - 1999///.
CY  - New Delhi : 
PB  - Wiley
KW  - Algebra
KW  - Mappings
KW  - Counting principle
N1  - Index
ER  -