Gruchy, J. W. The church struggle in South Africa (2nd.ed.). Wm.B.Eerdmans.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGruchy, John W.de. The Church Struggle in South Africa. 2nd.ed. Grand Rapids: Wm.B.Eerdmans.
एमएलए (9वां संस्करण) प्रशस्ति पत्रGruchy, John W.de. The Church Struggle in South Africa. 2nd.ed. Wm.B.Eerdmans.
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