Cite

Self Portrait (after Nadar's George Sand)

MLA

Giard, Robert. Self Portrait (after Nadar's George Sand). 1977. https://collections.library.yale.edu/catalog/2033201.

APA, 6th edition

Giard, R. (1977). Self Portrait (after Nadar's George Sand). https://collections.library.yale.edu/catalog/2033201.