TY  - GEN
AU  - Lipschutz, Seymour
AU  - Lipson, Marc Lars
TI  - 2000 solved problems in discrete mathematics
SN  - 0070380317
U1  - 510.76 
PY  - 1992///
CY  - New York
PB  - McGraw-Hill
KW  - Mathematics
ER  -