Cite

[A gentleman in black doublet with slashed sleeves] [art original].

MLA

[A Gentleman in Black Doublet with Slashed Sleeves] [Art Original]. 0AD. https://collections.library.yale.edu/catalog/15815241.

APA, 6th edition

[A gentleman in black doublet with slashed sleeves] [art original]. (0 C.E.). [Portraits British 17th century, Paintings British 17th century]. https://collections.library.yale.edu/catalog/15815241.