000			00486nam a2200145Ia 4500
008			230917s9999||||xx |||||||||||||| ||und||
040			_e74042 _aMAIN
041			_aEnglish
082			_a658.4033 H222I
100			_aHarder, Theodor
245		0	_aIntroduction to mathematical models in market and opinion research: with practical applications, computing, procedures and estimates of computing requirements
260			_aHolland _bD Reidel _c1969
300			_aix, 194 p.
942			_cBK
999			_c191960 _d191960