TY  - GEN
AU  - Lipschutz,Seymour
AU  - Lipson,Marc
TI  - Schaum's outline of discrete mathematics, 3rd ed.
T2  - Schaum's outline series
SN  - 0071470387
U1  - 510 
PY  - 2007///
CY  - [S.l.]
PB  - McGraw-Hill
ER  -