Singh.B. Ed. <br/><br/>
International Symposium On Underground Engg Vol.1. 

 - 1st Ed. 
 -  OIBH  1988 
 - 530p.  22 cm. 
<br/><br/><br/>Text in English 
<br/><br/><label>Subjects--Facted Index Terms: </label><br/>CIVI
<br/><br/><label>Index Terms--Genre/Form: </label><br/>C-21
<br/><br/><label>Dewey Class. No.: </label>622.26  / SIN