APA Style

Case, Karl E., Fair, Ray C., Oster, Sharon M.. (2009). Principles of economics (9th ed. Pearson Intl. ed.). New York: Prentice-Hall.

Chicago Style

Case, Karl E., Fair, Ray C., Oster, Sharon M.. Principles of economics. 9th ed. Pearson Intl. ed. New York: Prentice-Hall, 2009. Text.

MLA Style

Case, Karl E., Fair, Ray C., Oster, Sharon M.. Principles of economics. 9th ed. Pearson Intl. ed. New York: Prentice-Hall, 2009. Text.

Turabian Style

Case, Karl E., Fair, Ray C., Oster, Sharon M.. Principles of economics. 9th ed. Pearson Intl. ed. New York: Prentice-Hall, 2009. Print.