Berkhof, H. (1989). Two hundred years of theology: Report of a personal journey. Grand Rapids.
Chicago-viite (17. p.)Berkhof, Hendrikus. Two Hundred Years of Theology: Report of a Personal Journey. Michigan: Grand Rapids, 1989.
MLA-viite (9. p.)Berkhof, Hendrikus. Two Hundred Years of Theology: Report of a Personal Journey. Grand Rapids, 1989.
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