The future of small scale mining: first international conference, November 26 - December 5, 1978, Jurica, Qro., Mexico, sponsored by the  United Nations Institute for Training Research [and others].  edited by R.F. Meyer and John S. Carman
Contributors: R.F. Meyer; J.S. Carman; United Nations Institute for Training Research
Publisher: United Nations Institute for Training Research
Place of publication: New York
Language: eng
Number of pages: 501
Subjects: Underdeveloped areas - Mineral industries
Notes: 11