Development of airborne equipment to intensify world food production / 
Economic Commission for Europe. 
 - New York :  United Nations,  1981. 
 - x, 218 p. : 
<br/><br/><label>ISBN: </label>GOVT-DOC3787 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Aeronautics in agriculture.
<br/><br/><label>Dewey Class. No.: </label>338.19  / De