edited by Raymond C. Sangster ; organized by the National Bureau of Standards, with the cooperation of the Office of Science and Technology, Department of Commerce, U.S. Coordinator for the UN Conference on Science and Technology for Development, and the Agency for International Development. -- National Bureau of Standards, for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1979. -- (NBS special publication ; 543).