Gaya APA
Usher, Dan. (2003).
Political Economy .
USA:
Blackwell Publishing.
Gaya Chicago
Usher, Dan.
Political Economy.
USA:
Blackwell Publishing,
2003.
Text.
Gaya MLA
Usher, Dan.
Political Economy.
USA:
Blackwell Publishing,
2003.
Text.
Gaya Turabian
Usher, Dan.
Political Economy.
USA:
Blackwell Publishing,
2003.
Print.