TY  - BOOK
AU  - x, x
AU  - Beckenbach,Edwin F.
TI  - Applied combinatoral mathematics: x
SN  - x
U1  - 512.5/BEA 
PY  - 1964///
CY  - N.Y.
PB  - Wiley
KW  - Algebra
N1  - x
ER  -