Hockett, Charles Francis. Language, mathematics, and linguistics / by Charles F. Hockett. - The Hague : Mouton, 1967. - 243 p. : ill. ; 23 cm. - Janua linguarum. Series minor ; no. 60 . - Janua linguarum. Series minor ; no. 60 . Bibliography : p. 227-230. Subjects--Topical Terms: Mathematical linguistics.Generative grammar.