Gaya APA

Berkhof, L. et al (1989). Foundations of Christian Education : Addresses to Christian Teachers . Phillipsburg, New Jersey, USA: Presbyterian and Reformed Publishing Company.

Gaya MLA

Berkhof, Louis. et al. "Foundations of Christian Education : Addresses to Christian Teachers". Phillipsburg, New Jersey, USA: Presbyterian and Reformed Publishing Company, 1989. Academic.