Westermann Diedrich, W. I. C. (1933). Practical Phonetics for Students of African languages. Oxfored university.
Chicago Edition CitationWestermann Diedrich, Ward Ida C. Practical Phonetics for Students of African Languages. Britain: Oxfored university, 1933.
MLA Edition CitationWestermann Diedrich, Ward Ida C. Practical Phonetics for Students of African Languages. Oxfored university, 1933.
Warning: These citations may not always be 100% accurate.