American Decades cover American Eras: Primary Sources, Vol. 1 cover American Eras: Primary Sources, Vol. 2 cover American Eras: Primary Sources, Vol. 3 cover American Eras: Primary Sources, Vol. 4 cover American Eras: Primary Sources, Vol. 5 cover American Eras: Primary Sources, Vol. 6 cover American Eras: Primary Sources, Vol. 7 cover American Eras: Primary Sources, Vol. 8 cover Great Depression and the New Deal Reference Library cover History Behind the Headlines: The Origins of Conflicts Worldwide cover New Dictionary of the History of Ideas cover Roaring Twenties Reference Library cover UXL Civics cover UXL World Eras cover