Du Plessis, A. P. (1956). Die Nederlandse emigrasie na Suid-Afrika; sakere aspekte rakende voorbereiding tot aanpassing: The Dutch emigration to South Africa; some aspects concerning preparation for adjustment. With a summary in English. Teerhuis & Klinkenberg.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Du Plessis, André Pieter. Die Nederlandse Emigrasie Na Suid-Afrika; Sakere Aspekte Rakende Voorbereiding Tot Aanpassing: The Dutch Emigration to South Africa; Some Aspects Concerning Preparation for Adjustment. With a Summary in English. Amstelveen: Teerhuis & Klinkenberg, 1956.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Du Plessis, André Pieter. Die Nederlandse Emigrasie Na Suid-Afrika; Sakere Aspekte Rakende Voorbereiding Tot Aanpassing: The Dutch Emigration to South Africa; Some Aspects Concerning Preparation for Adjustment. With a Summary in English. Teerhuis & Klinkenberg, 1956.