Gaya APA
Mankiw, N. Gregory. (2015).
Principles of economics (7th ed.).
Stamford:
Cengage Learning.
Gaya Chicago
Mankiw, N. Gregory.
Principles of economics.
7th ed.
Stamford:
Cengage Learning,
2015.
Text.
Gaya MLA
Mankiw, N. Gregory.
Principles of economics.
7th ed.
Stamford:
Cengage Learning,
2015.
Text.
Gaya Turabian
Mankiw, N. Gregory.
Principles of economics.
7th ed.
Stamford:
Cengage Learning,
2015.
Print.