00380nam a2200109Ia 450000500170000000800410001705000220005810000240008024500820010426000510018665000330023720251229085625.0251229s9999    xx            000 0 und d  aAFR HD 9198 .K4E7  aEtherington, Dan M. 0aSmallholder tea production in kenyab an econometric studycDan M Etherington  aNairobib East African Literature Bureauc1973  aTea Trade-Mathematical Model