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024 _a27453
037 _cTextual
040 _aCSL
_beng
_cCSL
041 _aeng
082 _aB7:2, K7
100 _aShearer J Lowen
245 0 _aIntroduction to system dynamics
260 _c1967
300 _ap.
_ccm.
700 _a Murphy Arthur T
700 _a Richardson Herbert H
942 _hB7:2, K7
_cTEXL
_2CC
999 _c95232
_d95232