Gaya APA
Ambler, Eric. (1987).
The Dark Frontier (Third ed).
:
Britain William Collin Sons.
Gaya Chicago
Ambler, Eric.
The Dark Frontier.
Third ed
:
Britain William Collin Sons,
1987.
UMUM.
Gaya MLA
Ambler, Eric.
The Dark Frontier.
Third ed
:
Britain William Collin Sons,
1987.
UMUM.
Gaya Turabian
Ambler, Eric.
The Dark Frontier.
Third ed
:
Britain William Collin Sons,
1987.
UMUM.