MLA

La Notte Di Ronchi / Piero Belli. Societa anonima editoriale, 1920. https://collections.library.yale.edu/catalog/2035585.

APA, 6th edition

La notte di Ronchi / Piero Belli. (1920). [Book covers, Covers (Illustrations)]. Societa anonima editoriale. https://collections.library.yale.edu/catalog/2035585.