APA Style
Case, Karl E., Fair, Ray C.. (1989).
Principles of Economics .
Amerika:
Prentice Hall.
Chicago Style
Case, Karl E., Fair, Ray C..
Principles of Economics.
Amerika:
Prentice Hall,
1989.
Text.
MLA Style
Case, Karl E., Fair, Ray C..
Principles of Economics.
Amerika:
Prentice Hall,
1989.
Text.
Turabian Style
Case, Karl E., Fair, Ray C..
Principles of Economics.
Amerika:
Prentice Hall,
1989.
Print.