Fifteith anniuersary of nylon and teflen. 

 - Wilmington  D E DU pont company.        1988 
 - 47p.  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>X9.73.N87r, M7/GD