Poems for study ; a critical and historical introduction / by Leonard Unger and William Van O'Connor. Unger, Leonard, ed. O'Connor, William Van, 1915-1966, joint ed. English poetry. American poetry. PR1175 .U56 821.009 UNP New York : Rinehart, 1953. 1953. 1953 Text xxi, 743 p. : eng