Gaya APA
Case, Karl E., Fair, Ray C.. (2007).
Principles of Economics. (8th ed.).
New Jersey:
Prentice Hall.
Gaya Chicago
Case, Karl E., Fair, Ray C..
Principles of Economics..
8th ed.
New Jersey:
Prentice Hall,
2007.
Text.
Gaya MLA
Case, Karl E., Fair, Ray C..
Principles of Economics..
8th ed.
New Jersey:
Prentice Hall,
2007.
Text.
Gaya Turabian
Case, Karl E., Fair, Ray C..
Principles of Economics..
8th ed.
New Jersey:
Prentice Hall,
2007.
Print.