APA (7th ed.) Citation

Frere, W. H. (1930). Studies in early Roman liturgy: I, The kalendar. Oxford university press.

Chicago Style (17th ed.) Citation

Frere, Walter Howard. Studies in Early Roman Liturgy: I, The Kalendar. London: Oxford university press, 1930.

MLA (9th ed.) Citation

Frere, Walter Howard. Studies in Early Roman Liturgy: I, The Kalendar. Oxford university press, 1930.