Cita APA (7th ed.)

McConnell, C. R. (2012). Economics: Principles, problems, and policies (Nineteenth Edition.). McGraw-Hill.

Cita Chicago (17th ed.)

McConnell, Campbell R. Economics: Principles, Problems, and Policies. Nineteenth Edition. Boston, Burr Ridge, Ill: McGraw-Hill, 2012.

Cita MLA (9th ed.)

McConnell, Campbell R. Economics: Principles, Problems, and Policies. Nineteenth Edition. McGraw-Hill, 2012.