Kullen, A. S., Hanna, M. M., & Christopher, G. C. (1996). The peopling of America: A timeline of events that helped shape our nation : a historical perspective (4th ed.). Beltsville, MD: Portfolio Project.
Chicago Style CitationKullen, Allan S., Martha M. Hanna, and Gail C. Christopher. The Peopling of America: A Timeline of Events That Helped Shape Our Nation : A Historical Perspective. 4th ed. Beltsville, MD: Portfolio Project, 1996.
MLA CitationKullen, Allan S., Martha M. Hanna, and Gail C. Christopher. The Peopling of America: A Timeline of Events That Helped Shape Our Nation : A Historical Perspective. 4th ed. Beltsville, MD: Portfolio Project, 1996.