APA

Williams R. R., . (1950). Authority in the apostolic age with two essays on the modern problem of authority. London: SCM Press.

Chicago

Williams R R, . 1950. Authority in the apostolic age with two essays on the modern problem of authority. London: SCM Press.

Harvard

Williams R. R., . (1950). Authority in the apostolic age with two essays on the modern problem of authority. London: SCM Press.

MLA

Williams R R, . Authority in the apostolic age with two essays on the modern problem of authority. London: SCM Press. 1950.