APA (7th ed.) Citation

Willis, G. G. (1964). Essays in early Roman liturgy (1. publ.). S.P.C.K.

Chicago Style (17th ed.) Citation

Willis, Geoffrey Grimshaw. Essays in Early Roman Liturgy. 1. publ. London: S.P.C.K, 1964.

MLA (9th ed.) Citation

Willis, Geoffrey Grimshaw. Essays in Early Roman Liturgy. 1. publ. S.P.C.K, 1964.