APA (7th ed.) Citation

Martínez Ruiz, H. (2010). Historia universal contemporánea. Cengage Learning.

Chicago Style (17th ed.) Citation

Martínez Ruiz, Héctor. Historia Universal Contemporánea. México, D.F.: Cengage Learning, 2010.

MLA (8th ed.) Citation

Martínez Ruiz, Héctor. Historia Universal Contemporánea. Cengage Learning, 2010.

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