TY  - BOOK
AU  - Aitchison,Jean
ED  - UNESCO
TI  - UNESCO thesaurus : a structured list of descriptors for indexing and retrieving literature in the fields of education, science, social science, culture and communication / comp. by Jean Aitchison
SN  - 9231041692
AV  - C/Z695/U53 
PY  - 1977///
CY  - Paris
PB  - UNESCO
KW  - Encabezamientos de Materia
N1  - Monografía
ER  -