Nentwig, J <br/><br/>
Chemistry made easy   : a programmed course for self instruction .Pt.I 
Nentwig, J 
 - Weinheim  Verlag chemie  1983 
 - xviii, 652p. 
<br/><br/><label>ISBN: </label>3-527-25931-7    
<br/><br/><label>Subjects--Index Terms: </label>Chemistry 
<br/><br/><label>Dewey Class. No.: </label>54(076)  / NEN