Joos, Martin, The five clocks : a linguistic excursion into the five styles of English usage / Martin Joos. With an introduction by Albert H. Marckwardt. - New York : Harcourt, Brace & World, 1967. - 108 p. ; ISBN: BK1404 Subjects--Topical Terms: English language-Usage.- Dewey Class. No.: 808.042 / Fi