Gaya APA
Ambler, E, (, , , ). (-1961).
Cause for alarm, (repr.). - Penguin, 517. Tjet. pertama, 1938. .
(Harmondsworth):
Penguin Books.
Gaya MLA
Ambler, E., (1909-, , , )..
"Cause for alarm, (repr.). - Penguin, 517. Tjet. pertama, 1938. ".
(Harmondsworth):
Penguin Books,
-1961.
Buku.