Gaya APA
Samuelson, Paul A. (1958).
Economics (4th).
New York:
McGraw-Hill Book Company, Inc..
Gaya Chicago
Samuelson, Paul A.
Economics.
4th
New York:
McGraw-Hill Book Company, Inc.,
1958.
Text.
Gaya MLA
Samuelson, Paul A.
Economics.
4th
New York:
McGraw-Hill Book Company, Inc.,
1958.
Text.
Gaya Turabian
Samuelson, Paul A.
Economics.
4th
New York:
McGraw-Hill Book Company, Inc.,
1958.
Print.