Cita APA (7a ed.)

Petre, M. D. (1937). Von Hugel and Tyrrell: The story of a friendship. J.M. Dent and sons.

Cita Chicago Style (17a ed.)

Petre, Maude Dominica. Von Hugel and Tyrrell: The Story of a Friendship. London: J.M. Dent and sons, 1937.

Cita MLA (9a ed.)

Petre, Maude Dominica. Von Hugel and Tyrrell: The Story of a Friendship. J.M. Dent and sons, 1937.