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 
<br/><br/> "UNITAR CR/12." 
<br/><br/>Includes bibliographical references and indexs (p.: 495 - 492 ) 
<br/><br/><label>ISBN: </label>0706066495  RM 85.99 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mines and mineral resources --Congresses
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Mining engineering --Congresses
<br/><br/><label>Dewey Class. No.: </label>338.2  / FUT 1980