00338nam a2200109Ia 450000500170000000800410001705000140005810000250007224500760009726000420017365000130021520251229191203.0251229s9999    xx            000 0 und d  aS 603 .P5  aPhillips, E. Ronald. 0aNo tillage researchb research reports and reviews.cE. Ronald Phillips  aKentuckyb University of Kentuckyc ?  aTillage.