Unesco thesaurus :
Aitchison, Jean
Unesco thesaurus : a structured list of descriptors for indexing and retrieving literature in the fields of education, science, social science, culture, and communication / Jean Aitchison - Paris : Unesco, 1977. - 2 v. (530 p.) ; 31 cm.
Subject headings. Indexing.
029.5 UNE.2
Unesco thesaurus : a structured list of descriptors for indexing and retrieving literature in the fields of education, science, social science, culture, and communication / Jean Aitchison - Paris : Unesco, 1977. - 2 v. (530 p.) ; 31 cm.
Subject headings. Indexing.
029.5 UNE.2