00432nam a2200133Ia 4500008004100000082001500041100002400056245007400080260004500154300001000199600002500209600002500234650003900259140113s9999    xx            000 0 und d  a632.982 J1  a" Hough, Walter S."  aSpraying dusting and fumigating of plants principles and applications  b"New York : The Macmillan company, 1951"  a726p.  a" Mason, A. Freeman"  a" Mason, A. Freeman"  a"Spraying, dusting and fumigating"