Kok, J. H. (1996). Patterns of the Western mind: A reformed christian perspective. Potchefstroome Universiteit.
Lua i Stíl Chicago (17ú heag.)Kok, John H. Patterns of the Western Mind: A Reformed Christian Perspective. Potchefstroome: Potchefstroome Universiteit, 1996.
Lua MLA (9ú heag.)Kok, John H. Patterns of the Western Mind: A Reformed Christian Perspective. Potchefstroome Universiteit, 1996.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.