Gerloff, R. I. H. (1992). A plea for British Black theologies: The Black church movement in Britain in its transatlantic cultural and theological interaction with special reference to the Pentecostal Oneness (Apostolic) and Sabbatarian movements. P. Lang.

Gerloff, Roswith I. H. A Plea for British Black Theologies: The Black Church Movement in Britain in Its Transatlantic Cultural and Theological Interaction with Special Reference to the Pentecostal Oneness (Apostolic) and Sabbatarian Movements. Frankfurt am Main ; New York: P. Lang, 1992.

Gerloff, Roswith I. H. A Plea for British Black Theologies: The Black Church Movement in Britain in Its Transatlantic Cultural and Theological Interaction with Special Reference to the Pentecostal Oneness (Apostolic) and Sabbatarian Movements. P. Lang, 1992.