توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

United States. Operations Mission to Liberia & United States. International Cooperation Administration. (1961). Third report on forestry progress in Liberia, 1951-1959. International Cooperation Administration.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

United States. Operations Mission to Liberia و United States. International Cooperation Administration. Third Report on Forestry Progress in Liberia, 1951-1959. Washington, D.C.: International Cooperation Administration, 1961.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

United States. Operations Mission to Liberia و United States. International Cooperation Administration. Third Report on Forestry Progress in Liberia, 1951-1959. International Cooperation Administration, 1961.