Earthmoving by manual labour and machines :  report and discussion papers of the working party on earthmoving operations. 

 - Bangkok :      ECAFE ,  1961 
 - 114p. :  ill. ;  30 cm. 
 - Flood control series .
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture<br/>Labour<br/>Farm management
<br/><br/><label>Dewey Class. No.: </label>631  / ECAFE