APA (7th ed.) Citation

Rordorf, W. (1968). Sunday: The history of the day of rest and worship in the earliest centuries of the christian church. SCM Press.

Chicago Style (17th ed.) Citation

Rordorf, Willy. Sunday: The History of the Day of Rest and Worship in the Earliest Centuries of the Christian Church. London: SCM Press, 1968.

MLA (9th ed.) Citation

Rordorf, Willy. Sunday: The History of the Day of Rest and Worship in the Earliest Centuries of the Christian Church. SCM Press, 1968.