TY  - BOOK
AU  - Lipschutz,Seymour
AU  - Lipson,Marc
TI  - 2000 solved problems in discrete mathematics
SN  - 0070380317
AV  - QA43  .L56 1992
PY  - 1992///
CY  - New York
PB  - Mc Graw Hill
KW  - Mathematics
KW  - Problems, exercises, etc
ER  -