Cita APA (7th ed.)

McEACHERN, W. A. (2003). Economics: A contemporary introduction.-- ed.6. Thomson South-Western.

Cita Chicago (17th ed.)

McEACHERN, William A. Economics: A Contemporary Introduction.-- Ed.6. Australia: Thomson South-Western, 2003.

Cita MLA (9th ed.)

McEACHERN, William A. Economics: A Contemporary Introduction.-- Ed.6. Thomson South-Western, 2003.