00598cam a22001937a 4500003000500000005001700005008004100022010001000063011001000073035001000083040000900093100003100102245010100133260007200234300001400306650002700320650003100347700002600378CHAP20220329133738.0971013s1980            r     00010     d  a10249  a11221  a10459  cCHAP00aChacón, E., Juan Carlos.14aThe use of the 'NON-WEED' concept in traditional tropical agroecosystem of southeastern México  aCárdenas, Tab. :bColegio Superior de Agricultura Tropical,c1980  ac.a. 21 h14aEcología agrícola.14aMalas hierbasxEcología.0 aGliessman, Stephen R.