00434nam a2200169Ia 4500001001000000003000500010008004100015010001100056040000900067082001800076100002100094245007400115260002800189300001100217650001500228700002100243Para_6731CHAP220125s1973    xx            000 0 und d  a205539  cCHAP  aPA 632.954 A8  aAshton, Floyd M.  aMode of action of herbicides  /c by Floyd M. Ashton, Alden S. Crafts  aNew York :b John Wiley  a504 p.  aHerbicidas  aCrafts, Alden S.