"Petrie Watson Exhibitions". Faculty of Arts and Humanities, University of Sheffield. 19 December 2018. Archived from the original on 19 December 2018. Retrieved 22 January 2020.
"Petrie Watson Exhibitions". Faculty of Arts and Humanities, University of Sheffield. 19 December 2018. Archived from the original on 19 December 2018. Retrieved 22 January 2020.