UNESCO : twenty years of service to peace, 1946-1966. - [2nd impression.]. - Paris : Unesco, 1967, [c1966]. - Unesco. [Document] ; MC.67/D.63a/A . - [Document] (Unesco) ; MC.67/D.63a/A . Cover illustrated in color. ISBN: 6.00 LCCN: 76350150 //r862 Nat. Bib. No.: F*** Subjects--Corporate Names: Unesco. LC Class. No.: AS4 / .U8A15 MC.67/D.63a/A 1967 Dewey Class. No.: 060