Purto, Victor <br/><br/>
Petroleum 

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 - Moscow  Mir  1972 
 - 334p   
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<br/><br/><label>ISBN: </label>
<br/><br/><label>ISSN: </label>
<br/><br/><label>Subjects--Index Terms: </label>Petroleum 
<br/><br/><label>Dewey Class. No.: </label>553.98