Gaya APA
Liu. (2005).
The Singapore foreign service the first 40 years .
SINGAPORE:
Ministry of Foreign Affairs.
Gaya Chicago
Liu.
The Singapore foreign service the first 40 years.
SINGAPORE:
Ministry of Foreign Affairs,
2005.
Text.
Gaya MLA
Liu.
The Singapore foreign service the first 40 years.
SINGAPORE:
Ministry of Foreign Affairs,
2005.
Text.
Gaya Turabian
Liu.
The Singapore foreign service the first 40 years.
SINGAPORE:
Ministry of Foreign Affairs,
2005.
Print.