Gaya APA
Vann, G, O.
(-1960).
Morals and man. - Fontana books, 416R. Penerbitan asli 1937.
.
(London dsl):
Collins.
Gaya MLA
Vann, G.,, O.P..
"Morals and man. - Fontana books, 416R. Penerbitan asli 1937. ".
(London dsl):
Collins,
-1960.
Buku.