Gaya APA
Nordhaus, William, Samuelson, Paul. (2005).
Economics (eighteenth edition) (18).
New York:
McGraw - Hill.
Gaya Chicago
Nordhaus, William, Samuelson, Paul.
Economics (eighteenth edition).
18
New York:
McGraw - Hill,
2005.
Text.
Gaya MLA
Nordhaus, William, Samuelson, Paul.
Economics (eighteenth edition).
18
New York:
McGraw - Hill,
2005.
Text.
Gaya Turabian
Nordhaus, William, Samuelson, Paul.
Economics (eighteenth edition).
18
New York:
McGraw - Hill,
2005.
Print.