«Catholic Film Unit Withdraws Award Given to 'Teorama'». The New York Times, 28-03-1969. [Consulta: 13 febrer 2021]. «The Roman Catholic Church's film-reviewing body, the Office Catholique International du Cinema, has withdrawn the award it gave at the Venice Film Festival last September to the Italian drama "Teorema."»
rogerebert.com
Roger Ebert. «Teorema», 26-05-1969. [Consulta: 13 febrer 2021]. «Some will say "Teorema" is about Christ too. That was the prevailing theory last year at the Venice Film Festival, when "Teorema" won the International Catholic Jury grand award. But that was not the theory at the Vatican, which attacked the award in an official statement.»
sky.it
cinema.sky.it
«Teorema». Morandini Film Dictionary. Sky Cinema. [Consulta: 16 juny 2017].