Appropriate technologies in civil engineering works in developing countries : an exploratory appraisal of the state of the art /
Department of Economic and Social Affairs.
- New York : United Nations, 1976.
- vii, 64 p. ; 24 cm.
Includes bibliographical references.
77359872
Public works--Developing countries.
338 / UNA
Includes bibliographical references.
77359872
Public works--Developing countries.
338 / UNA