Gaya APA
Samuelson, Paul A., Nordhaus, William D.. (2010).
Economics (19th ed.).
New York, NY.:
McGraw-Hill/Irwin.
Gaya Chicago
Samuelson, Paul A., Nordhaus, William D..
Economics.
19th ed.
New York, NY.:
McGraw-Hill/Irwin,
2010.
Text.
Gaya MLA
Samuelson, Paul A., Nordhaus, William D..
Economics.
19th ed.
New York, NY.:
McGraw-Hill/Irwin,
2010.
Text.
Gaya Turabian
Samuelson, Paul A., Nordhaus, William D..
Economics.
19th ed.
New York, NY.:
McGraw-Hill/Irwin,
2010.
Print.