01142cam a22003137a 4500 20220329141222.0 971010s1986 r 00010 d 64567 65539 72457 Tesis Mellink Bijtel, Eric. 74370 Some ecological characteristics of three dry farming systems in the San Luis Potosí Plateau, México [Tucson, Arizona] : El autor, 1986 331 p. D97-224 Tesis (D. Ph.) -- University of Arizona. Faculty of the Committee on Arid Lands Resource Sciences ALEPH 10 20130110 UCH01 1353 BATCH-UPD 10 20130110 UCH01 0823 BATCH-UPD 10 20130410 UCH01 0501 BATCH-UPD 10 20130914 UCH01 0319 CONVERSION 10 20130109 UCH01 1335 Agricultura Regiones áridas. 1781 Agricultura San Luis Potosí. 1790 Agricultura San Luis Potosí. 1790 Regiones áridas Agricultura. 95670 BK ZA TES -5163 TS1 72457 i 64567 64567