Sprague, Howard B. <br/><br/>
Evaluation of the natural resources available for agricultural production and development in the tropics and subtropics 

 - Washington :  Agency for International Development,  1975 
 - 29 p.  ; mapas 
 - Agriculture technology for developing countries. Technical series bulletin  ; 18 .
 - Agriculture technology for developing countries. Technical series bulletin  ; 18 .
<br/><br/><label>LCCN: </label>57547 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Recursos naturales--Trópicos.<br/>Recursos naturales--Utilización.