Cite

Joan of Austria, Great Duchess of Tuscany, first wife of Duke Francis & mother of Mary of Medicis [art original].

MLA

Joan of Austria, Great Duchess of Tuscany, First Wife of Duke Francis & Mother of Mary of Medicis [Art Original]. 0AD. https://collections.library.yale.edu/catalog/11001131.

APA, 6th edition

Joan of Austria, Great Duchess of Tuscany, first wife of Duke Francis & mother of Mary of Medicis [art original]. (0 C.E.). [Portrait drawings, Watercolors 18th century]. https://collections.library.yale.edu/catalog/11001131.