APA Style
Arnold, Roger A.. (2011).
Principles of Economics (10th ed.).
China:
South-Western CENGAGE Learning.
Chicago Style
Arnold, Roger A..
Principles of Economics.
10th ed.
China:
South-Western CENGAGE Learning,
2011.
Buku Teks.
MLA Style
Arnold, Roger A..
Principles of Economics.
10th ed.
China:
South-Western CENGAGE Learning,
2011.
Buku Teks.
Turabian Style
Arnold, Roger A..
Principles of Economics.
10th ed.
China:
South-Western CENGAGE Learning,
2011.
Buku Teks.