Survey for the development of the Guayas river basin of Ecuador. An integrated natural resource evaluation. 

 - Washington, Estados Unidos   Unión Panamericana.  1964 
 - xv, 226 p.     27 cm. 
<br/><br/>Bibliografía: p. 225-226 
<br/><br/><label>Subjects--Topical Terms: </label><br/>GUAYAS (RIO), CUENCA DEL.<br/>RECURSOS NATURALES - ECUADOR.
<br/><br/><label>Dewey Class. No.: </label>333.7/Un3s