League of Nations. Permanent Mandates Commission & Hirsekorn, H. B. K. (1937). Comments on the report of the South West Africa Commission: For the information of the members of the Permanent Mandates Commission of the League of Nations. s.n.].
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)League of Nations. Permanent Mandates Commission و H. B. K. Hirsekorn. Comments on the Report of the South West Africa Commission: For the Information of the Members of the Permanent Mandates Commission of the League of Nations. [South Africa: s.n.], 1937.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)League of Nations. Permanent Mandates Commission و H. B. K. Hirsekorn. Comments on the Report of the South West Africa Commission: For the Information of the Members of the Permanent Mandates Commission of the League of Nations. s.n.], 1937.