000			003400000a22001450004500
245			_aSystems modelling and analysis
100			_aNagrath, I.J.
100			_aGopal, M.
260			_aNew Delhi _bTata McGraw-Hill _c1982
300			_axii, 647p.
080			_a519.711 _bN3
650			_aSYSTEMS ANALYSIS
041			_aEN
942			_cBK
999			_c64847 _d64847