The Future Of Small Scale Mining : First International Conference / sponsored by the United Nations Institute for Training and Research (UNITAR) , The Consejo de Recursos Minerales and Secretaría de Patrimonio y Fomento Industrial (SEPAFIN) of the Government of Mexico, in cooperation with the United Nations Development Programme ... [et al.], 26 November-5 December 1978, Jurica, Qro., Mexico ; J. Barnea , G. P. Salas, scientific secretaries ; R. F. Meyer and J. S. Carman, editors. - New York : United Nations Institute for Training and Research (UNITAR) , 1980 - xxiii, 501 pages .: maps, graph, illustrations .; 28 cm

"UNITAR CR/12."

Includes bibliographical references and indexs (p.: 495 - 492 )

0706066495 RM 85.99


Mines and mineral resources --Congresses


Mining engineering --Congresses

338.2 / FUT 1980