TY  - BOOK
AU  - Mittal,Harish
AU  - Goyal, Vinay Kumar .
AU  - Goyal,  Deepak Kumar .
TI  - A textbook of discrete mathematics
SN  - 9789380026763
AV  - QA76.9.M35 HAR 
PY  - 2010///
CY  - New Delhi
PB  - I. K. International Publishing House, 
ER  -