Gaya APA
Samuelson, Paul A.. (1967).
Economics an introductory analysis Paul A. Samuelson (7th ed).
New York:
McGraw Hill.
Gaya Chicago
Samuelson, Paul A..
Economics an introductory analysis Paul A. Samuelson.
7th ed
New York:
McGraw Hill,
1967.
Text.
Gaya MLA
Samuelson, Paul A..
Economics an introductory analysis Paul A. Samuelson.
7th ed
New York:
McGraw Hill,
1967.
Text.
Gaya Turabian
Samuelson, Paul A..
Economics an introductory analysis Paul A. Samuelson.
7th ed
New York:
McGraw Hill,
1967.
Print.