TY  - BOOK
AU  - Armstrong,M.A.
TI  - Groups and symmetry
T2  - Undergraduate texts in mathematics
SN  - 0387966757
U1  - 519.4 
PY  - 1988///
CY  - New York
PB  - Springer
KW  - GRUPOS SIMETRICOS
KW  - SIMETRIA
KW  - TEORIA DE LOS GRUPOS
ER  -