Biblioteche, cobire, Toscana, Regione Toscana, Sebina, catalogo biblioteca, opac, ebook, digitale, indaco, prestito, libri, cd, dvd, prestito, consultazione, leggere.

Unesco thesaurus : a structured list of descriptors for indexing and retrieving literature in the fields of education, science, social science, culture and communication

Aitchison, Jean

Repertori UNESCO 1977