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.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিCompany, 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.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিCompany, 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.
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