00442nam a2200157Ia 4500008004100000041001200041082001300053100001700066100001100083245009100094260001200185260003800197260000900235300001500244365002500259150909s9999    xx            000 0 und d  aEnglish  aSampling  aKearl Bryant  eEditor  aField data collection in the social Science : experiences inAfrica and the Middle East  aNewYork  bAgricultural  Development Council  c1976  a200  Pages  aUSD.4.50