Gaya APA
Samuelson, Paul A., Nordhaus, William D.. (2002).
Economics (Ed.17).
Singapore:
McGraw Hill.
Gaya Chicago
Samuelson, Paul A., Nordhaus, William D..
Economics.
Ed.17
Singapore:
McGraw Hill,
2002.
Text.
Gaya MLA
Samuelson, Paul A., Nordhaus, William D..
Economics.
Ed.17
Singapore:
McGraw Hill,
2002.
Text.
Gaya Turabian
Samuelson, Paul A., Nordhaus, William D..
Economics.
Ed.17
Singapore:
McGraw Hill,
2002.
Print.