Gaya APA
Lewis, C.
(1978).
Prayer: Letters to Malcolm, [repr.ed.]. Cet.pertama 1966.
.
Collins:
Fount Paperbacks.
Gaya MLA
Lewis, C.S..
"Prayer: Letters to Malcolm, [repr.ed.]. Cet.pertama 1966. ".
Collins:
Fount Paperbacks,
1978.
Buku.