TY  - BOOK
AU  - Razzell, Arthur G.
AU  - Watts,K.G.O.
AU  - Chadwick,Peter
TI  - Symmetry : Mathematical topics 3
U1  - 510.7 
PY  - 1971///
CY  -  London
PB  - Rupert hart Davis educational
KW  - Natural sciences and mathematics
ER  -