Neufville, Richard de. <br/><br/>
Role of air transportation in sparsely developed areas / 
Richard de Neufville, Ulpiano Ayala, Jorge Acevedo and Luis Mira. 
 - Cambridge :  Institute of Technology, Civil engingeering,  1973. 
 - xiv, 161 p. :  ill. ;  26 cm. 
<br/><br/> " Prepared for the U.S. dept. of transportation office of the Assistant secretary for policy and international affairs, Washington,DC. 
<br/><br/>Includes bib. references. 
<br/><br/> Open. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Aeromautics, Commercial--Developing Countries.