APA (7th ed.) Citation
Regan, P., & Irwin, K. W. (2012). Advent to Pentecost.: Comparing the seasons in the ordinary and extraordinary forms of the Roman rite. Liturgical Press.
Chicago Style (17th ed.) Citation
Regan, Patrick, and Kevin W. Irwin. Advent to Pentecost.: Comparing the Seasons in the Ordinary and Extraordinary Forms of the Roman Rite. Collegeville, Minnesota: Liturgical Press, 2012.
MLA (9th ed.) Citation
Regan, Patrick, and Kevin W. Irwin. Advent to Pentecost.: Comparing the Seasons in the Ordinary and Extraordinary Forms of the Roman Rite. Liturgical Press, 2012.
Warning: These citations may not always be 100% accurate.