Nelson, O. F. (1930). The petition of Olaf Frederick Nelson, merchant of Apia, Western Samoa, now resident in Auckland, New Zealand, to the Permanent Mandates Commission of the League of Nations, Geneva, Switzerland.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Nelson, O. F. The Petition of Olaf Frederick Nelson, Merchant of Apia, Western Samoa, Now Resident in Auckland, New Zealand, to the Permanent Mandates Commission of the League of Nations, Geneva, Switzerland. 1930.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Nelson, O. F. The Petition of Olaf Frederick Nelson, Merchant of Apia, Western Samoa, Now Resident in Auckland, New Zealand, to the Permanent Mandates Commission of the League of Nations, Geneva, Switzerland. 1930.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.
