Gaya APA
Smuelson, Paul A.. (1915).
Economics (1st ed.).
New York:
Irwin McGraw-Hill.
Gaya Chicago
Smuelson, Paul A..
Economics.
1st ed.
New York:
Irwin McGraw-Hill,
1915.
Texts.
Gaya MLA
Smuelson, Paul A..
Economics.
1st ed.
New York:
Irwin McGraw-Hill,
1915.
Texts.
Gaya Turabian
Smuelson, Paul A..
Economics.
1st ed.
New York:
Irwin McGraw-Hill,
1915.
Texts.