Program and abstract for the XV IUGG general assembly, Moscow 
edited by Leroy R. Alldredge 
 - Moscow  Publishing House Nauka  1971 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Iaga BulletinIugg
<br/><br/><label>Universal Decimal Class. No.: </label>550.38  / ALL