TY  - BOOK
AU  - Crossley,John N.
AU  - Crossley,John N.
AU  - Nerode,Anil
TI  - Combinatorial functors
SN  - 0387064281 (New York)
PY  - 1974///
CY  - Berlin, New York
PB  - Springer-Verlag
KW  - Combinatorics
ER  -