TY  - BOOK
AU  - Liu,C.L.
TI  - Elements of discrete mathematics
SN  - 007038133X :
U1  - 511 19
PY  - 1985///
CY  - New York
PB  - McGraw-Hill
KW  - Combinatorial analysis
KW  - Algebra, Abstract
N1  - Includes bibliographies and index
ER  -