Gaya APA
Samuelson, Paul A.. (1955).
Economics : an introductory analysis (3rd ed).
New York:
McGraw Hill.
Gaya Chicago
Samuelson, Paul A..
Economics : an introductory analysis.
3rd ed
New York:
McGraw Hill,
1955.
Text.
Gaya MLA
Samuelson, Paul A..
Economics : an introductory analysis.
3rd ed
New York:
McGraw Hill,
1955.
Text.
Gaya Turabian
Samuelson, Paul A..
Economics : an introductory analysis.
3rd ed
New York:
McGraw Hill,
1955.
Print.