Hydrogenation of coal and cottons 

 - New  York United Nations U S A    1972 
 - "vii,79p."  cm. 
<br/><br/><label>Standard No.: </label>111961 
<br/><br/><label>Source: </label> Reference Collections 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Technology
<br/><br/><label>Dewey Class. No.: </label>"F551:2aN70-N59, L2/UN"