Browsing by Author "De Villiers, Pieter Daniël"
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'n Taksonomies-morfologiese ondersoek van die Suid-Afrikaanse verteenwoordigers van Sphedamnocarpus Planch. ex Benth & Hook. F. (Malpighiaceae)
De Villiers, Pieter Daniël (North-West University (South Africa), 1983)"Abstract not copied" -
Tydgees en opvoeding
De Villiers, Pieter Daniël (Potchefstroom University for Christian Higher Education, 1976)1. The Problem Man finds himself living in a time in which peoples and nations are no longer conquered by physical or military strength, but by a systematic undermining of their culture and their spiritual life, which again ...