Παραπομπή σε μορφή APA (7η εκδ.)

Coyne, G. V., Hoskin, M. A., & Pedersen, O. (1983). Gregorian reform of the calendar: Proceedings of the Vatican Conference to commemorate its 400th anniversary, 1582-1982. Pontificia Academia Scientiarum : Specola Vaticana.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Coyne, George V., Michael A. Hoskin, και O. Pedersen. Gregorian Reform of the Calendar: Proceedings of the Vatican Conference to Commemorate Its 400th Anniversary, 1582-1982. Citt ̉del Vaticano, Europe: Pontificia Academia Scientiarum : Specola Vaticana, 1983.

Παραπομπή σε μορφή MLA (8th εκδ.)

Coyne, George V., et al. Gregorian Reform of the Calendar: Proceedings of the Vatican Conference to Commemorate Its 400th Anniversary, 1582-1982. Pontificia Academia Scientiarum : Specola Vaticana, 1983.