Company, D. S. (1911). Windows of the Royal Bavarian Art Institute: Stained Glass Windows Designed and Executed by F.X. Zettler. Munich. Chicago and New York.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Company, Daprato Statuary. Windows of the Royal Bavarian Art Institute: Stained Glass Windows Designed and Executed by F.X. Zettler. Munich. Chicago and New York, 1911.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Company, Daprato Statuary. Windows of the Royal Bavarian Art Institute: Stained Glass Windows Designed and Executed by F.X. Zettler. Munich. Chicago and New York, 1911.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.