APA (7th ed.) Zitazioa
Botha, A. P. (2007). Knowledge- living and working with it (ed.). Juta & Co..
Chicago Style (17th ed.) Zitazioa
Botha, Anthon P. Knowledge- Living and Working with It. ed. Cape town: Juta & Co., 2007.
MLA (9th ed.) Zitazioa
Botha, Anthon P. Knowledge- Living and Working with It. ed. Juta & Co., 2007.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.