Pyles, Thomas, 1905-1980. The origins and development of the English language / Thomas Pyles. - 2nd ed. - New York : Harcourt Brace Jovanovich, c1971 [1971] - x, 413 p. : ill. , 21 cm. Includes indexes. Selected bibliography, p. 364-375. ISBN: 0155676032 Subjects--Topical Terms: English language--History. Dewey Class. No.: 420.9 / PYO 1971