Unesco Thesaurus : a structured list of descriptors for indexing and retrieving literature in the fields of education, science, social and human science, culture, communication and information.
- London : Unesco, c 1977.
- Vols. ; 30 cm.
V. 1- (introduction, classified thesaurus, permuted index, hierarchial display) ;
333 333
92-3-101469-2
Unesco--Thesaurus.
029.703 / A91u
V. 1- (introduction, classified thesaurus, permuted index, hierarchial display) ;
333 333
92-3-101469-2
Unesco--Thesaurus.
029.703 / A91u