000			00500nam a2200169Ia 4500
008			131223s9999 xx 000 0 und d
040			_aISI KOLKATA
041			_aEnglish
082			_a658.57 _bC289(233)
100			_aSrinivasan V
245			_aDuality in the transportation model
260			_aPittsburgh _bCIT _c1971
440			_aCarnegie Institute of Technology : Management Science Research Report; No. 233
650			_aTransportation model
700			_aThompson G L _4Auth.
942			_cBK
999			_c92913 _d92913