00696nam a2200181 i 450000100060000000300090000600500170001500700030003200800410003511100900007624500370016626000650020330000280026871000470029685200320034399900170037595201220039246093ES-MaACL20250828084000.0t|030327s1968 sz ||||1| fre d2 aConférence Internationale de l'Instruction Publique (n31ª. d1968.cGinebra)916912aL'étude du milieu a l'école. aGenève, ect. : bBureau International d'Education, c1968. aXLIV, 191 p. ; c24 cm.20aOficina Internacional de Educación96022 aES-MaACLjC-46633 bR.67662 c46093d46093 00104070aATENEOMbATENEOMcDEPO2d2008-01-17eSCl0oC-46633p1048489r2023-02-23 00:00:00w2023-02-23yMONOGRAFIA