Mellink Bijtel, Eric. <br/><br/>
Some ecological characteristics of three dry farming systems in the San Luis Potosí Plateau, México 

 - [Tucson, Arizona] :  El autor,  1986 
 - 331 p. 
<br/><br/> D97-224 
<br/><br/>Tesis (D. Ph.) -- University of Arizona. Faculty of the Committee on Arid Lands Resource Sciences 
<br/><br/><label>LCCN: </label>64567 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultura--Regiones áridas.<br/>Agricultura--San Luis Potosí.<br/>Agricultura--San Luis Potosí.<br/>Regiones áridas--Agricultura.