APA (7e ed.) Bronvermelding

Hügel, F., & Greene, G. M. (1928). Letters from Baron Friedrich von Hügel to a niece. J.M. Dent & Sons.

Chicago (17e ed.) Bronvermelding

Hügel, Friedrich, en Gwendolen Maud Greene. Letters from Baron Friedrich Von Hügel to a Niece. London ; Toronto: J.M. Dent & Sons, 1928.

MLA (8e ed.) Bronvermelding

Hügel, Friedrich, en Gwendolen Maud Greene. Letters from Baron Friedrich Von Hügel to a Niece. J.M. Dent & Sons, 1928.