00261nam a2200109Ia 4500082002500000100001900025245004800044260003200092300001700124500000500141700000500146  a338.1091713bC785.AA  aCoppock, J. O.  aAtlantic agricultural unitybis it possible  aNew YorkbMcGraw-Hillc1966  axviii, 238p.  a  a