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 .
Includes bibliographical references and index.
Agriculture
Labour
Farm management
631 / ECAFE
Includes bibliographical references and index.
Agriculture
Labour
Farm management
631 / ECAFE