TY  - DATA
AU  - Georg Polya; R.C. Read
TI  - Combinatorial Enumeration of Groups, Graphs, and Chemical Compounds
SN  - 9781461246640
PY  - 1987///
PB  - Springer New York
KW  - Mathematics and Statistics
UR  - https://doi.org/10.1007/978-1-4612-4664-0
ER  -