United Nations. (1976). Appropriate technologies in civil engineering works in developing countries: An exploratory appraisal of the state of the art. United Nations.
Chicago Style (17th ed.) CitationUnited Nations. Appropriate Technologies in Civil Engineering Works in Developing Countries: An Exploratory Appraisal of the State of the Art. New York: United Nations, 1976.
MLA (9th ed.) CitationUnited Nations. Appropriate Technologies in Civil Engineering Works in Developing Countries: An Exploratory Appraisal of the State of the Art. United Nations, 1976.
Warning: These citations may not always be 100% accurate.