00966cam a2200289 a 4500 1649256 BD-DhUL 20170412164707.0 730226s1972 nyua b 000 0 eng 73154202 1649256 LC eng LC NSL:R BD-DhUL d------ JX1977 .A2 ST/ECA/155 HD9506.A2 U552 Copy 2. 300/.8 s 338.2 UNS United Nations. Department of Economic and Social Affairs. Resources and Transport Division. Small-scale mining in the developing countries / United Nations. New York : United Nations, 1972. vi, 171 p. illus. 28 cm. United Nations. Document ; ST/ECA/155 "United Nations publication. Sales no.: E.72.II.A.4." Bibliography: p. 158-166. Mineral industries Developing countries. ddc REF 178722 178722 0 0 ddc 0 338_200000000000000_UNS 0 REF 315267 DUL DUL UNC 2017-04-12 Gift 338.2 UNS D5987 2017-04-12 1 2017-04-12 REF