Thesauri in 2005

Streetwise Italian Dictionary/Thesaurus: The User-Friendly Guide to Italian Slang and Idioms by Spani, Giovanni, Balma, Philip, Albanese, Nicholas

A History of Roget's Thesaurus: Origins, Development, and Design by Hüllen, Werner

Roget's 21st Century Thesaurus: In Dictionary Form by Kipfer, Barbara Ann

Roget's 21st Century Thesaurus, Third Edition by Kipfer, Barbara Ann