Berkhof, L. (1941). Systematic theology. The Banner of Truth Trust.
Chicago-čujuhus (17. p.)Berkhof, Louis. Systematic Theology. Edinburgh: The Banner of Truth Trust, 1941.
MLA-čujuhus (9. p.)Berkhof, Louis. Systematic Theology. The Banner of Truth Trust, 1941.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.