Guelzo, A. C., Gallagher, G. W., & Allitt, P. (2008). The history of the United States (2nd ed.). Teaching Co..
Chicago Style (17th ed.) CitationGuelzo, Allen C., Gary W. Gallagher, and Patrick Allitt. The History of the United States. 2nd ed. Chantilly, VA: Teaching Co., 2008.
MLA (9th ed.) CitationGuelzo, Allen C., et al. The History of the United States. 2nd ed. Teaching Co., 2008.
Warning: These citations may not always be 100% accurate.