TY  - BOOK
AU  - Lipschutz,Seymour .
TI  - Schaum`s outline of theory and problems of discrete mathematics : / 
T2  - Schaum`s outline series, 
SN  - 0070379815
U1  - 512.74 
PY  - 1976///
CY  - NewDelhi : 
PB  - Mcgraw-hill book  , 
KW  - NUMBER THEORY
N1  - Includes index
ER  -