Simon, E. (1988). The Türkenkalender: (1454); attributed to Gutenberg and the Strasbourg Lunation Tracts. Speculum <Chicago, Ill.> / Anniversary monographs.
Chicago Style (17th ed.) CitationSimon, Eckehard. "The Türkenkalender: (1454); Attributed to Gutenberg and the Strasbourg Lunation Tracts." Speculum <Chicago, Ill.> / Anniversary Monographs 1988.
MLA (8th ed.) CitationSimon, Eckehard. "The Türkenkalender: (1454); Attributed to Gutenberg and the Strasbourg Lunation Tracts." Speculum <Chicago, Ill.> / Anniversary Monographs, 1988.
Warning: These citations may not always be 100% accurate.