00819nam a2200193 i 450000100060000000300090000600500170001500700030003200800410003511100900007624500690016626000790023530000110031449000610032583000690038685200320045599900170048795201210050446012ES-MaACL20230906161321.0t|030327s1957    fr           ||||1| fre d2 aConférence Internationale de l'Instruction Publique (n20ª. d1957.cGinebra)915910aXXe Conférence Internationale de l'Instruction Publique, 1957.  aParis : bUNESCO ; aGenève : bBureau International d'Education,c1957.  a174 p.1 aPublications du Bureau International d'Education ; v1870 aPublications du Bureau International d'Education ; v1879181740  aES-MaACLjC-15341 bR.42983  c46012d46012  00104070aATENEOMbATENEOMcFICHd2008-01-17eSCl0oC-15341p1048407r2023-02-23 00:00:00w2023-02-23yMONOGRAFIA