Johnson, William Bruce (2010). Miracles & sacrilege : Roberto Rossellini, the church and film censorship in Hollywood. Gibson Library Connections. Toronto [Ont.]: University of Toronto Press. ISBN978-1-4426-8863-6. OCLC632170163.
Black, Gregory D. (1994). Hollywood censored : morality codes, Catholics, and the movies. Cambridge [England]: Cambridge University Press. ISBN0-521-45299-6. OCLC29565096.