Gaya APA
Case,Karl E. (2009).
Principles of Economics (9).
New Jersey:
Prentice Hall.
Gaya Chicago
Case,Karl E.
Principles of Economics.
9
New Jersey:
Prentice Hall,
2009.
Text.
Gaya MLA
Case,Karl E.
Principles of Economics.
9
New Jersey:
Prentice Hall,
2009.
Text.
Gaya Turabian
Case,Karl E.
Principles of Economics.
9
New Jersey:
Prentice Hall,
2009.
Print.