Παραπομπή σε μορφή APA (7η εκδ.)

Hügel, F. (1961). The mystical element of religion as studied in Saint Catherine of Genoa and her friends. J. M. Dent.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Hügel, Friedrich. The Mystical Element of Religion as Studied in Saint Catherine of Genoa and Her Friends. London: J. M. Dent, 1961.

Παραπομπή σε μορφή MLA (8th εκδ.)

Hügel, Friedrich. The Mystical Element of Religion as Studied in Saint Catherine of Genoa and Her Friends. J. M. Dent, 1961.