Cita APA (7th ed.)

Pearson/Prentice Hall & Jacobs, H. H. (2009). Prentice Hall world studies: South america and europe (North Carolina ed.). Pearson/Prentice Hall.

Cita Chicago (17th ed.)

Pearson/Prentice Hall i Heidi Hayes Jacobs. Prentice Hall World Studies: South America and Europe. North Carolina ed. Boston: Pearson/Prentice Hall, 2009.

Cita MLA (8th ed.)

Pearson/Prentice Hall i Heidi Hayes Jacobs. Prentice Hall World Studies: South America and Europe. North Carolina ed. Pearson/Prentice Hall, 2009.