Cita APA (7th ed.)
Berkhof, L. (1938). Summary of Christian doctrine for senior classes. Wm. B. Eerdmans.
Cita Chicago (17th ed.)
Berkhof, Louis. Summary of Christian Doctrine for Senior Classes. Michigan: Wm. B. Eerdmans, 1938.
Cita MLA (9th ed.)
Berkhof, Louis. Summary of Christian Doctrine for Senior Classes. Wm. B. Eerdmans, 1938.
Atenció: Aquestes cites poden no estar 100% correctes.