000
00269nam a22001217a 4500
020
_a
9788131712870
100
_a
Richard Johnsonbaugh
245
_a
Discrete Mathematics
250
_a
6th
260
_a
New Delhi
_b
Pearson Education
_c
2009
300
_a
688
942
_c
BK
999
_c
58936
_d
58936