Slavery in the United States: A Social, Political, and Historical Encyclopedia
Encyclopedia of the Vietnam War: A Political, Social, and Military History
The 9/11 Encyclopedia
The Princeton Encyclopedia of American Political History
by
Princeton University Press
American Constitutional Law: The Bill of Rights and Subsequent Amendments
by
Westview Press
American Constitutional Law: The Structure of Government
Historical Encyclopedia of American Labor
by
Robert Weir and James P. Hanlan
Encyclopedia of World Trade From Ancient Times to the Present
by
Cynthia Clark Northrup