MLA

Caruso, Luciano. Silence (Block Poem). 0AD. https://collections.library.yale.edu/catalog/16706414.

APA, 6th edition

Caruso, L. (0 C.E.). Silence (Block Poem) [Artists' books (books)--Italy--20th century, Book objects--Italy--20th century, Collages (visual works)--Italy--20th century, Manuscripts, Poems--Italy--20th century]. https://collections.library.yale.edu/catalog/16706414.