Cita APA (7th ed.)
Botha, A. P. (2007). Knowledge: Living and working with it. Juta & Co.
Cita Chicago (17th ed.)
Botha, Anthon P. Knowledge: Living and Working with It. Cape Town: Juta & Co, 2007.
Cita MLA (9th ed.)
Botha, Anthon P. Knowledge: Living and Working with It. Juta & Co, 2007.
Atenció: Aquestes cites poden no estar 100% correctes.