00339nam a2200145Ia 4500008004100000020001800041041001200059082001700071100001400088245002300102250001200125260002500137300000800162650002300170231217s9999 xx 000 0 und d a0-07-460404-X aEnglish a658.8 BER;6 aBeri, G C 0aMarketing research a2nd ed. c1993bTMHaNew Delhi a454 aMarketing research