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.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)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.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)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.