Political Science

International Studies Encyclopedia
Includes substantial review essays that range from art in international relations to multilateral diplomacy to xenophobia.

Encyclopedia of Political Science
Comprehensive survey of the world of politics at the beginning of the twenty-first century.

Blackwell Reference Online
Includes:
A Companion to American Foreign Relation
A Companion to the Anthropology of Politics
A Companion to International History 1900 – 2001
The Blackwell Companion to Political Sociology
A Companion to Contemporary Political Philosophy

Gale Virtual Reference Library
Includes:
Encyclopedia of American Foreign Policy
Encyclopedia of Espionage, Intelligence, and Security
Encyclopedia of Genocide and Crimes Against Humanity

Encyclopedia of Nationalism:
Includes: Volume 1 (Fundamental themes) and Volume 2 (Leaders, movements, and concepts).