Gaya APA
Lewis, C.
(1978).
The four loves, [8th impr.]. Cet.pertama 1963.
.
Collins:
Fount Paperbacks.
Gaya MLA
Lewis, C.S..
"The four loves, [8th impr.]. Cet.pertama 1963. ".
Collins:
Fount Paperbacks,
1978.
Buku.