TY  - BOOK
AU  - Balakrishnan,V.K.
TI  - Schaum's outline of theory and problems of combinatorics: including concepts of graph theory 
SN  - 0071138951
U1  - 511.6076  
PY  - 1995///
CY  - New York
PB  - McGraw-Hill
N1  - Includes bibliographical references
ER  -