Episodes :  1987 : international geoscience newsmagazine / 
Union internationale des sciences géologiques. 
 - Ottawa :   International union of geological sciences,   1978- 
 - v. ;   28 cm. 
<br/><br/><label>ISSN: </label>0705-3797 
<br/><br/><label>Subjects--Index Terms: </label>გეოლოგია პერიოდიკა 
<br/><br/><label>Universal Decimal Class. No.: </label>55(05)