Gaya APA

Fair, K, E, C, R, C. (1994). PRINCIPLES OF ECONOMICS (10 edd). New Jersey: New Jersey : Prentice-Hall International,.

Gaya MLA

Fair, Karl, E., Case,, Ray, C.. "PRINCIPLES OF ECONOMICS". 10 edd New Jersey: New Jersey : Prentice-Hall International,, 1994. Text.