(1987). Educational challenges in southern Africa in a Christian-reformational perspective. Potchefstroom University for Christian Higher Education.
Čikaški stil citiranja (17. izdanje)Educational Challenges in Southern Africa in a Christian-reformational Perspective. Potchefstroom: Potchefstroom University for Christian Higher Education, 1987.
MLA način citiranja (9. izdanje)Educational Challenges in Southern Africa in a Christian-reformational Perspective. Potchefstroom University for Christian Higher Education, 1987.
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