Onika, D. G. (Dmitrii Grigorevich). <br/><br/>
Excavation of mine openings / 
[by] D. Onika. 
 - [Rev. ed.] / translated from the Russian by Victor Shiffer.  [Rev. ed.] / translated from the Russian by Victor Shiffer. 
 - Moscow :  Mir Publishers,  1972. 
<br/><br/> Rev. translation of Provedenie gornykh vyrabotok.  Rev. from the 1969 Russian ed. 
<br/><br/>Bibliography: p. [448]-449. 
<br/><br/><label>ISBN: </label> 2.47rub 
<br/><br/><label>LCCN: </label>73150530 //r82 
<br/><br/><label>Nat. Bib. No.: </label>USSR72-9093 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Shaft sinking.<br/>Coal mines and mining.
<br/><br/><label>LC Class. No.: </label>TN283  / .O513 1972 
<br/><br/><label>Dewey Class. No.: </label>622/.2