MLA

Harttung vom Hoff, Caspar. Das Vade Mecum. 1557. https://collections.library.yale.edu/catalog/2037177.

APA, 6th edition

Harttung vom Hoff, C. (1557). Das vade mecum [Early works to 1800, Manuscripts, Renaissance Austria 16th century, Medieval and Renaissance Manuscripts in Beinecke Library]. https://collections.library.yale.edu/catalog/2037177.