Gaya APA
Wilhelmsen, F. (1956).
Man's knowledge of reality, an introduction to thomistic epistemology. .
Englewood Cliffs:
Prentice-Hall.
Gaya MLA
Wilhelmsen, F.D..
"Man's knowledge of reality, an introduction to thomistic epistemology. ".
Englewood Cliffs:
Prentice-Hall,
1956.
Buku.