Roget, P. M. 1. (1988). Roget's thesaurus of English words and phrases. Penguin Books.
Dyfyniad Arddull ChicagoRoget, Peter Mark 1779-1869. Roget's Thesaurus of English Words and Phrases. Penguin Books, 1988.
Dyfyniad MLARoget, Peter Mark 1779-1869. Roget's Thesaurus of English Words and Phrases. Penguin Books, 1988.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.