00493nam a2200181 a 450000100080000000500110000800800410001910000180006024500380007825000120011626000680012830000110019665000190020765300230022665300150024965300120026465300350027610318642022-07-12       1986    bl uuuu     u00u1 u    #d1 aCAMPER, N. D.  aResearch methods in weed science.  a3a. ed.  aChampaign, Illinois, (USA): Southern Weed Science Societyc1986  a486 p.  aINVESTIGACIÓN  aCONTROL DE MALEZAS  aHERBICIDAS  aMALEZAS  aMETODOLOGÍA DE INVESTIGACIÓN