00512nam a2200193Ia 4500001001000000003000500010008004100015010001100056040000900067082002300076100002100099245009100120250000600211260002300217300001100240650001500251650003000266700002200296Para_7476CHAP220125s1991    xx            000 0 und d  a206363  cCHAP  aPA 632.58 A84 1991  aAshton, Floyd M.  aWeed cience  :b principles and practices  /c by Floyd M. Ashton and Thomas J. Monaco  a3  aNew York :b Wiley  a466 p.  aHerbicidas  aMalas hierbas x control   aMonaco, Thomas J.