APA (7th ed.) Citation

Verwey, S., Benecke, R., & Muir, C. Purpose and practice. University of Johannesburg.

Chicago Style (17th ed.) Citation

Verwey, Sonja, René Benecke, and Clarissa Muir. Purpose and Practice. University of Johannesburg.

MLA (9th ed.) Citation

Verwey, Sonja, et al. Purpose and Practice. University of Johannesburg.