Gaya APA
Case, K, E., Fair, R, C.
(1992).
Principles of Microeconomics
(
edisi 2)
.
New York:
A Simon & Schuster Company.
Gaya MLA
Case, Karl, E., Fair, Ray, C.
"Principles of Microeconomics".
edisi 2
New York:
A Simon & Schuster Company,
1992.
Text.