Gaya APA
Pugel, Thomas A.. (2007).
International economics (13th ed.).
New York:
McGraw Hill-Irwin.
Gaya Chicago
Pugel, Thomas A..
International economics.
13th ed.
New York:
McGraw Hill-Irwin,
2007.
Text.
Gaya MLA
Pugel, Thomas A..
International economics.
13th ed.
New York:
McGraw Hill-Irwin,
2007.
Text.
Gaya Turabian
Pugel, Thomas A..
International economics.
13th ed.
New York:
McGraw Hill-Irwin,
2007.
Print.