Sánchez, Pedro A. <br/><br/>
The subhumid tropics  : technology and management for rainted agriculture 

<br/><br/> Sobretiro de: Agricultural Sector Symposia. 1980 Proceedings 
<br/><br/><label>LCCN: </label>51477 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Suelos--Trópicos.