000 00425nam a2200157 4500
008 01973 1990 0x 000 0mex
020 _a968-13-0814-X
050 _aHD20.5 CH561
082 _a658.403 CH561
100 _aChurchman, C. West
245 _aEl enfoque de sistemas / C. West Churchman
250 _areimp.1990
260 _aMéxico : Diana
300 _a270 p. 23 cm
650 _a1. ANALISIS DE SISTEMAS
999 _c19838
_d19838