Cita APA (7a ed.)

Gerhohus Reicherspergensis, a., & Häring, N. M. (1974). Letter to Pope Hadrian about the Novelties of the Day. Pontifical Institute of Mediaeval Studies.

Cita Chicago Style (17a ed.)

Gerhohus Reicherspergensis, aproximadament, y Nikolaus M. Häring. Letter to Pope Hadrian About the Novelties of the Day. Toronto: Pontifical Institute of Mediaeval Studies, 1974.

Cita MLA (9a ed.)

Gerhohus Reicherspergensis, aproximadament, y Nikolaus M. Häring. Letter to Pope Hadrian About the Novelties of the Day. Pontifical Institute of Mediaeval Studies, 1974.