TY  - BOOK
AU  - Cohn, P.M
TI  - Basic algebra:groups,rings and fields
SN  - 9788181280473
U1  - 512.55 
PY  - 2008///
CY  - New York
PB  - Springer
KW  - BASIC ALGEBRA
KW  - GROUPS
KW  - RINGS-FIELDS
ER  -