TY  - BOOK
AU  - LiuL.C.
TI  - Elements of discrete mathematics
T2  - (MacGraw-Hill computer science series)
SN  - 0070381313
PY  - 1977///
CY  - New York
PB  - MacGraw-Hill book company
KW  - Combinatorial analysis
KW  - Algebra, Abstract
N1  - Includes bibliographies and index
ER  -