MLA

Jordan von Martinsbuech, Christoff. Cronica Unnd Beschreibunge. 1577. https://collections.library.yale.edu/catalog/2066980.

APA, 6th edition

Jordan von Martinsbuech, C. (1577). Cronica unnd Beschreibunge [Manuscripts, Renaissance Austria 16th century, Medieval and Renaissance Manuscripts in Beinecke Library]. https://collections.library.yale.edu/catalog/2066980.