Cite

[Prince William Frederick] [art original].

MLA

[Prince William Frederick] [Art Original]. 0AD. https://collections.library.yale.edu/catalog/15815194.

APA, 6th edition

[Prince William Frederick] [art original]. (0 C.E.). [Miniatures (Paintings), Paintings British 19th century, Portrait paintings, Watercolors British 19th century]. https://collections.library.yale.edu/catalog/15815194.