Cite

(three children on blanket in front of tree)

MLA

Giard, Robert. (Three Children on Blanket in Front of Tree). 0AD. https://collections.library.yale.edu/catalog/2033174.

APA, 6th edition

Giard, R. (0 C.E.). (three children on blanket in front of tree). https://collections.library.yale.edu/catalog/2033174.