Seven types of ambiguity / William Empson, Ambiguity, Seven types of. Empson, William, 1906-1984. Poetry. English poetry History and criticism. PN1031 .E5 Microfilm 24802 PN 821 EMS Replace; LC copy replaced by preservation microfilm DLC London : Chatto and Windus, 1930. 1930. 1930 Text 3 p. l., 325, [1] p. eng