Gaya APA

Geisler, N, L., Feinberg, P, D. (1982). Introduction To Philosophy : a christian perspective (Trawas) . Grand Rapids: Baker Book House.

Gaya MLA

Geisler, Norman, L.., Feinberg, Paul, D.. "Introduction To Philosophy : a christian perspective (Trawas)". Grand Rapids: Baker Book House, 1982. Text.