Review of problems and policies for specific commodities facing competition from synthetics and substitutes : C) Mica ; world trade in mica ; problems and possible remedial policies
note by the UNCTAD Secretariat; U.N. Conference on Trade and Development, Trade and Development Board, Committee on Commodities, Permanent Group on Synthetics and Substitutes, 2. sess., Geneva, 22.10.1968, item 3, cb, of the prov. agenda