Thinking ahead : Unesco and the challenges of today and tomorrow. - Paris : Unesco, 1977. "Unesco's Medium-Term Plan for 1977-1982" Includes bibliographical references. ISBN: 9231015257 LCCN: 78308371 //r86 Nat. Bib. No.: F*** Subjects--Corporate Names: Unesco. LC Class. No.: AS4.U8 / T44 Dewey Class. No.: 341.7/67