Williams, J. Grenfell. I am black: the story of Shabala / by J. Grenfell Williams and Henry John May; ill. by William Hendrikz - 2nd ed. - London : Cassell, (1937) - 239 P.: ill.; 21 CM Subjects--Personal Names: May, Henry John, joint author-------- Subjects--Geographic Terms: Africa, South -- Native races Dewey Class. No.: 827.9 WIL