Gaya APA
Heyne, Paul. (2000).
The economic way of thinking .
New Jersey:
Prentice Hall.
Gaya Chicago
Heyne, Paul.
The economic way of thinking.
New Jersey:
Prentice Hall,
2000.
Buku.
Gaya MLA
Heyne, Paul.
The economic way of thinking.
New Jersey:
Prentice Hall,
2000.
Buku.
Gaya Turabian
Heyne, Paul.
The economic way of thinking.
New Jersey:
Prentice Hall,
2000.
Buku.