00397nam a2200169 a 450000100080000000500110000800800410001910000180006024500340007825000100011226000310012230000100015365000230016365000130018665000130019970000150021210350492022-10-17       2005    bl uuuu     u00u1 u    #d1 aPEARSON, C.J.  aAgronomy of grassland systems  a2. ed  aNew York : Cambridgec2005  a222 p  aMANEJO DE PASTURAS  aPASTURAS  aPRADERAS1 aISON, R.L.