Safe construction and operation of tractors. 

 - Geneva :  ILO ,  1976 
 - 39p. :  ill. ;  14 cm.  
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>9221014037 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural mechanization<br/>Tractor driving<br/>Safety measures<br/>Tractors
<br/><br/><label>Dewey Class. No.: </label>631.3  / ILO