Membrane technology in the chemical industy 

 - New  York United Nations U S A    1990 
 - 91p.  cm. 
<br/><br/><label>Standard No.: </label>85210 
<br/><br/><label>Source: </label> Reports 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electrical
<br/><br/><label>Dewey Class. No.: </label>"X9(E).5.N8, N0/UN"