APA Style

Mankiw, N, G. et al (2012). Mankiw_Principles of Macroeconomics.6E (6th ed.). Mason, OH: South-Western Cengage Learning.

MLA Style

Mankiw, N., Gregory. et al. "Mankiw_Principles of Macroeconomics.6E". 6th ed. Mason, OH: South-Western Cengage Learning, 2012. Text.