TY  - BOOK
AU  -  Polya,George
AU  -  Read,Ronald C.
TI  -  Combinatorial enumeration of groups, graphs, and chemical compounds / 
SN  -  0387964134 : 
U1  -  511.62   23
PY  - 1987///
CY  -  New York : 
PB  -  Springer-Verlag, 
KW  -  Combinatorial enumeration problems
N1  -  Includes bibliographical references ( p. [136]-148.)
ER  -