Cita APA (7a ed.)

Parkin, M., Powell, M., & Matthews, K. (2017). Economics (Tenth Edition.). Pearson.

Cita Chicago Style (17a ed.)

Parkin, Michael, Melanie Powell, y Kent Matthews. Economics. Tenth Edition. New York: Pearson, 2017.

Cita MLA (8a ed.)

Parkin, Michael, et al. Economics. Tenth Edition. Pearson, 2017.