Cita APA (7th ed.)

Earl, P., & Wakeley, T. (2005). Business economics: A contemporary approach. McGraw-Hill.

Cita Chicago (17th ed.)

Earl, Peter, i Tim Wakeley. Business Economics: A Contemporary Approach. London: McGraw-Hill, 2005.

Cita MLA (8th ed.)

Earl, Peter, i Tim Wakeley. Business Economics: A Contemporary Approach. McGraw-Hill, 2005.