Norton, M. B., Sheriff, C., Blight, D. W., Chudacoff, H. P., Logevall, F., & Bailey, B. (2012). A People & a nation: A history of the United States (Ninth edition, International edition.). Wadsworth Cengage Learning.

Norton, Mary Beth, Carol Sheriff, David W. Blight, Howard P. Chudacoff, Fredrik Logevall, и Beth Bailey. A People & a Nation: A History of the United States. Ninth edition, International edition. Australia: Wadsworth Cengage Learning, 2012.

Norton, Mary Beth, et al. A People & a Nation: A History of the United States. Ninth edition, International edition. Wadsworth Cengage Learning, 2012.