Cita APA (7a ed.)

(2000). Introductory Economics (7a. ed.). Pearson education limited.

Cita Chicago Style (17a ed.)

Introductory Economics. 7a. ed. Edinburgh: Pearson education limited, 2000.

Cita MLA (8a ed.)

Introductory Economics. 7a. ed. Pearson education limited, 2000.