The 1985 raw materials situation   : eleventh enlarged  
/ IFA council meeting ; [red. by] P. L. Louis 
. - Paris  : IFA, 1985
. - 22 p.  ; 30 cm. 
<br/><br/><label>Source: </label> Fonds S.600 
<br/><br/><label>Universal Decimal Class. No.: </label>631.8