00481cas a2200169 a 4500001000800000005001700008008004100025019001300066040002300079245004400102260003300146300000700179500003900186610003600225650002700261710002300288310512620040521140712.0990119d193u193usz u 0 a0eng d1 a14361770 aWLBbengcWLBdANL00aBulletin of League of Nations teaching. aGeneva :bLeague of Nations. av. aDescription based on: No. 3 (1936)20aLeague of NationsxPeriodicals. 0aTeachingxPeriodicals.2 aLeague of Nations.