000 00304nam a2200121Ia 4500
008 160710s1950 xx 000 0 und d
082 _a658.83 D 28 P
100 _aDELENS,A.H.R.
245 _aPRINCIPLES OF MARKET RESEARCH
260 _bCROSBY LOCKWOOD &SON LTD
_c1950
300 _a254
942 _2ddc
_cB
999 _c12397
_d12397