The format used for art papers is usually either MLA or Chicago Manual of Style. For examples and explanations, below are some useful resources. For Brown Library books that can be checked out or read online, use this subject heading: Bibliographical citations.
Unknown Italian artist. St Jerome Preparing the Vulgate, from Malermi Bible. Woodcut, 1490. Luna Collection.
Your librarian can help you with researching your paper, but what about the actual writing process?
For Brown Library books that can be checked out or read online, use this subject heading: Art Criticism -- Authorship.
John Frederick Lewis. Arab School. Watercolor, 1841-1851. Metropolitan Museum of Art. OASC.