MLA

Caruso, Luciano. [Untitled]. 1969. https://collections.library.yale.edu/catalog/16719026.

APA, 6th edition

Caruso, L. (1969). [Untitled] [Artists' books (books)--Italy--20th century, Book objects--Italy--20th century, Manuscripts, Poems--Italy--20th century, Scrolls (information artifacts)]. https://collections.library.yale.edu/catalog/16719026.