Cita APA

Passelecq, G. (. 1., Suchecky, B. 1., & Wills, G. 1. (1997). The hidden encyclical of Pius XI. New York [etc.]: Harcourt Brace & Company.

Citación estilo Chicago

Passelecq, Georges (O.S.B.) 1919-1999, Bernard 1949- Suchecky, and Garry 1934- Wills. The Hidden Encyclical of Pius XI. New York [etc.]: Harcourt Brace & Company, 1997.

Cita MLA

Passelecq, Georges (O.S.B.) 1919-1999, Bernard 1949- Suchecky, and Garry 1934- Wills. The Hidden Encyclical of Pius XI. New York [etc.]: Harcourt Brace & Company, 1997.