000 00258nam a22000977a 4500
082 _a300.723
_bACK
100 _aAckoff, Russell L
245 _aThe Design of Social Research /
_cRussell L Ackoff
260 _aUSA
_bThe Uty of Chicago Press
_c1953
942 _cBK
999 _c499410
_d499410