International Graphical Federation (IGF). (1958). Report of proceedings of the fourth Congress and the Trade Groupe Conferences held in Munich, Federal Germany on the 14th to 20th september 1958. Berne: IGF.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)International Graphical Federation (IGF). Report of Proceedings of the Fourth Congress and the Trade Groupe Conferences Held in Munich, Federal Germany on the 14th to 20th September 1958. Berne: IGF, 1958.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)International Graphical Federation (IGF). Report of Proceedings of the Fourth Congress and the Trade Groupe Conferences Held in Munich, Federal Germany on the 14th to 20th September 1958. Berne: IGF, 1958.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.