Basic concepts connected with the economics of agriculutral mechanization / 
prepared by Prof. T. Nowacki (Poland) ; Economic Commission for Europe 
 - Geneva :  Economic commission for Europe,  1968 
 - 32 p. :  ill. ;  28 cm. 
 - Agricultural mechanization ;  32 .
<br/><br/>Includes bibliography: p. 28-30 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural machinery<br/>Agricultural mechanics<br/>Agricultural processing plants
<br/><br/><label>Dewey Class. No.: </label>631.3