000 00271n a2200109ua 4500
040 _aP K Kelkar Library, IIT Kanpur
100 _aShearer, J.L
245 0 _aIntroduction to system dynamics
_cJ.L.Shearer
260 _a
_b
_c
300 _a420p
997 _aA36765 C
999 _c461577
_d461577