00343nam a2200109Ia 450000500170000000800410001705000150005810000160007324500680008926000370015765000390019420251229192336.0251229s9999    xx            000 0 und d  aS 540  .A5  aAndrew, C.O 0aPlanning and conducting applied agricultual research.cC Andrew  aColoradob  Westview pressc1982  aAgricultural Research --- Planning