Cita APA (7a ed.)

Hügel, F. v., & Greene, G. (1950). Letters from Baron Friedrich von Hügel to a Niece. J.M. Dent & Sons.

Cita Chicago Style (17a ed.)

Hügel, Friedrich von, y Gwendolen Greene. Letters from Baron Friedrich Von Hügel to a Niece. London: J.M. Dent & Sons, 1950.

Cita MLA (9a ed.)

Hügel, Friedrich von, y Gwendolen Greene. Letters from Baron Friedrich Von Hügel to a Niece. J.M. Dent & Sons, 1950.