TY  - BOOK
AU  - Barnard Tony
AU  -  Neill Hugh
TI  - Discovering group theory: A transition to advanced mathematics
T2  - Textsbooks in mathematics
SN  - 9781138430846 (HBK)
U1  - B27, Q7 
PY  - 2017///
CY  - Boac Raton 
PB  - CRC press     
KW  -  Binary operations
KW  -  Integers
KW  -  Isomorphisms
KW  -  Permutations
KW  - Mathematics
N1  - Index 217-219p
ER  -