Gaya APA
Ridderbos, H, N. (1981).
The epistle of Paul to the Churches of Galatia, repr. Cet.pertama 1953 .
Grand Rapids:
Eerdmans.
Gaya MLA
Ridderbos, Herman, N..
"The epistle of Paul to the Churches of Galatia, repr. Cet.pertama 1953 ".
Grand Rapids:
Eerdmans,
1981.
Buku.