Citing sources is part of research. The Library has a helpful guide, How to Cite Sources, and it provides guidance on the different style citations.
Purdue Owl is a great resource for citation formatting.
When using an image you did not create, you must provide a citation. Image citations should include at least the following information:
MLA 8th edition Style
Artwork on a Museum Website:
Dürer, Albrecht. Feldhase. 1502. Albertina Museum, Vienna. Albertina Museum, https://sammlungenonline.albertina.at/?query=search=/record/objectnumbersearch=[3073]&showtype=record. Accessed 15 May 2023.
Digital Images/Images from Online Sources:
Perscheid, Nicola. Der Ausflug. ca. 1900. Deutsche Digitale Bibliothek, https://www.deutsche-digitale-bibliothek.de/item/WBKIOZGBOPEHL6EMIRIUU2F43AGULFEP. Accessed 15 May 2023.
APA 7th edition Style (from The Purdue OWL APA Formatting and Style Guide. Scroll towards the bottom to "Artwork in a Museum or on a Museum Website" and "Photograph (Not associated with a museum"):
Artwork on a Museum Website:
Höch, H. (1922-23). Untitled [Crayon on paper]. Museum of Modern Art, New York, NY, United States. https://www.moma.org/collection/works/38228?artist_id=2675&page=1&sov_referrer=artist.
Photograph (not associated with a museum):
Kruse, Ingrid von. (2005). Gesine Schwan (geb. 1943; Politikwissenschaftlerin, Politologin). [Photograph] Deutsche Fotothek. https://www.deutschefotothek.de/documents/obj/90028247/df_ivk_0000264.
Chicago Style
Digital Images/Images from Online Database:
Schulz-Neudamm, Heinz. "Metropolis." Photo, Print, Drawing. 1926. Library of Congress Prints and Photographs Online Catalog, https://www.loc.gov/item/2021669965/ (accessed May 15, 2023).