1. Gentlemanly Capitalism, Imperialism and Global History
2. Bakker, Gerben. 2003. “The Decline and Fall of the European Film Industry: Sunk Costs, Market Size and Market Structure, 1890-1927,” Economic History Working Papers 22366, London School of Economics and Political Science, Department of Economic History. http://eprints.lse.ac.uk/22366/.
3. BFI Filmography. Accessed July 20, 2019. https://filmography.bfi.org.uk/.