Practical phonetics for students of African languages / D. Westermann and Ida C. Ward. Westermann, Diedrich, 1875-1956. Ward, Ida C. (Ida Caroline), 1880-1949, joint author. International African Institute. African languages Phonetics. 496 WEP Bibliography: p. 140-141, [217]-218. London : Published for the International Institute of African Languages & Cultures by Oxford University Press, H. Milford, 1933. 1933. 1933 Text xvi, 227, [1] p., [3] leaves of plates : eng