TY  - BOOK
AU  - Liu, C.L.
AU  - Liu, C.L.
TI  - Elements of discrete mathematics
SN  - 0-07-043476-X
U1  - 511 LIE 22
PY  - 2002///
CY  - New Delhi
PB  - McGraw Hill Publishing Company.
KW  -  
KW  - General principles of mathematics
ER  -