The U.S. Justice system : an encyclopedia. Volume one /
The U.S. Justice system : an encyclopedia. Volume two /
The U.S. Justice system : an encyclopedia. Volume three /
Encyclopedia of the U.S. presidency : a historical reference. Volume I, Thematic essays /
Encyclopedia of the U.S. presidency : a historical reference. Volume II, Washington-Tyler, 1789-1845 /
Encyclopedia of the U.S. presidency : a historical reference. Volume III, Polk-Arthur, 1845-1885-1845 /
Encyclopedia of the U.S. presidency : a historical reference. Volume IV, Cleveland-Coolidge, 1885-1929 /
Encyclopedia of the U.S. presidency : a historical reference. Volume V, Hoover-Nixon, 1929-1974 /
Encyclopedia of the U.S. presidency : a historical reference. Volume VI, Ford-Obama, 1974-Present /
Inside out intemediate. Workbook /
Ethics in U.S. government : an encyclopedia of investigations, scandals, reforms, and legislation /
The U.S. & NATO : an Alliance of Purpose /
The Fugitive ; U.S. Marshals /
The U.S. military doctrine /
Introduction to the U.S. Law /
Outline of the U.S. economy /
U.S. education in crisis.
Outline of U.S. government.
U.S. environmental laws
Outline of U.S. history /
Inside U.S. Business : a concise encyclopedia of leading industries /