Cite

Anonymous. "War paintings." The Guardian, 24 décembre 1919. [1545-5]

MLA

Anonymous. "War Paintings." The Guardian, 24 Décembre 1919. [1545-5]. 0AD. https://collections.library.yale.edu/catalog/10650757.

APA, 6th edition

Anonymous. "War paintings." The Guardian, 24 décembre 1919. [1545-5]. (0 C.E.). [Scrapbooks]. https://collections.library.yale.edu/catalog/10650757.