TY  - BOOK
AU  - Aitchison,Jean
AU  - Viet,Jean,tr
ED  - UNESCO Computarized Documentation System.
TI  - UNESCO Thesaurus: a structured list of descriptors for indexing and retrievingliterature in the fields of education, science, social science, culture and communication: Volume 2, alphabetical thesaurus 
SN  - 9231014692
PY  - 1977///
CY  - Paris
PB  - UNESCO
ER  -