Gaya APA
Sahas, D, J.
(1972).
John of Damascus on Islam: the 'heresy of the Ishmaelites'.
.
Leiden:
Brill.
Gaya MLA
Sahas, Daniel,, J..
"John of Damascus on Islam: the 'heresy of the Ishmaelites'. ".
Leiden:
Brill,
1972.
Buku.