Gaya APA
Olmstead, C.
(1960).
History of religion in the United States.
.
Englewood Cliffs:
NJ Prentice-Hall.
Gaya MLA
Olmstead, C.E..
"History of religion in the United States. ".
Englewood Cliffs:
NJ Prentice-Hall,
1960.
Buku.