Medieval liturgy an introduction to the sources.

MLA

Rasmussen, Niels Krogh, William G Storey, and Cyrille Vogel. Medieval Liturgy: an Introduction to the Sources. Rev. andupd. transl. Washington: Pastoral Press, 1986.

APA

Rasmussen, N. Krogh, Storey, W. G, & Vogel, C. (1986). Medieval liturgy: an introduction to the sources. Rev. andupd. transl. Washington: Pastoral Press.

Chicago

Vogel, Cyrille Medieval Liturgy: An Introduction to the Sources. Translated by Niels Krogh Rasmussen and William G Storey. Rev. andupd. transl. Washington: Pastoral Press, 1986.