Cita APA

Hubbard, R. G., & O´Brien, P. (2006). Economics. Pearson / Prentice Hall.

Citación estilo Chicago

Hubbard, R. Glenn, and Patrick O´Brien. Economics. New Yersey: Pearson / Prentice Hall, 2006.

Cita MLA

Hubbard, R. Glenn, and Patrick O´Brien. Economics. Pearson / Prentice Hall, 2006.

Warning: These citations may not always be 100% accurate.