Gaya APA
Case, Karl E., Fair, Ray C.. (1996).
Principles of economics, 4th ed. (4th.ed.).
Upper Saddle River:
Prentice Hall.
Gaya Chicago
Case, Karl E., Fair, Ray C..
Principles of economics, 4th ed..
4th.ed.
Upper Saddle River:
Prentice Hall,
1996.
Text.
Gaya MLA
Case, Karl E., Fair, Ray C..
Principles of economics, 4th ed..
4th.ed.
Upper Saddle River:
Prentice Hall,
1996.
Text.
Gaya Turabian
Case, Karl E., Fair, Ray C..
Principles of economics, 4th ed..
4th.ed.
Upper Saddle River:
Prentice Hall,
1996.
Print.