000 00285nam a2200109Ia 4500
008 170504s9999 xx 000 0 und d
100 _aIGNOU
245 _aMS-51 OPERATIONS RESEARCH : CASE STUDIES
250 _a-
260 _bINDIRA GANDHI NATIONAL OPEN UNIVERSITY
_aNEW DELHI
_c2005
300 _a12
440 _n6
999 _c29272
_d29272