Di Pietro, Debora M. “«What Began As a Hobby Became a Consuming quest»: American Bibliophile William Lawrence Clements and His Collection of Incunabula”. Bibliothecae.it 10, no. 1 (January 1, 2021): 232–272. Accessed September 19, 2021. https://bibliothecae.unibo.it/article/view/13070.