Appropriate technologies in civil engineering works in developing co untries :    an appraisal of the state of the art. 

 - New York :    United Nations,    1976. 
 - vii, 64 p. ;    24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Appropriate technology -- Developing countries.<br/> Civil engineering -- Developing countries.
<br/><br/><label>Dewey Class. No.: </label>MISR 624.091724 UNI