ULASOV L <br/><br/>
107 stories about chemistry 
ULASOV L; TRIFONOV D; SOBOLEV David Tr. 
 - Moscow  Mir pub.           1977 
 - 118p.  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>E, L7/SC