Cite

(male nude leaning on sofa, harp in foreground)

MLA

Giard, Robert. (Male Nude Leaning on Sofa, Harp in Foreground). 0AD. https://collections.library.yale.edu/catalog/2034928.

APA, 6th edition

Giard, R. (0 C.E.). (male nude leaning on sofa, harp in foreground). https://collections.library.yale.edu/catalog/2034928.