Cita APA (7a ed.)

Viola, H. J., Wheatly, H., & Hart, D. (2007). Why we remember: United States history (Classics ed.). Pearson Prentice Hall.

Cita Chicago Style (17a ed.)

Viola, Herman J., Helen Wheatly, y Diane Hart. Why We Remember: United States History. Classics ed. Boston [u.a.]: Pearson Prentice Hall, 2007.

Cita MLA (9a ed.)

Viola, Herman J., et al. Why We Remember: United States History. Classics ed. Pearson Prentice Hall, 2007.