E&MJ operating handbook of mineral underground mining  V. 3 library of operation handbooks 
ed. Robert Sisselman 
 - vi, 440 p. 
<br/><br/> Incluye:Indice 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ingenieria de minas--Manuales
<br/><br/><label>Dewey Class. No.: </label>622.2  / EMJ 1978