Gaya APA
Gheon, H.
(1954).
The secret of St. John Bosco. Transl. by F.J. Sheed.
.
London:
Sheed & Ward.
Gaya MLA
Gheon, Henri.
"The secret of St. John Bosco. Transl. by F.J. Sheed. ".
London:
Sheed & Ward,
1954.
Buku.