APA (7th ed.) Citation

Williams, J. G., & May, H. J. (1936). I am black: The story of Shabala. Cassell.

Chicago Style (17th ed.) Citation

Williams, J. Grenfell, and Henry John May. I Am Black: The Story of Shabala. London: Cassell, 1936.

MLA (9th ed.) Citation

Williams, J. Grenfell, and Henry John May. I Am Black: The Story of Shabala. Cassell, 1936.