Credo Reference recently added the following titles:

• American Environmental Leaders: From Colonial Times to the Present, Grey House Publishing
• From Suffrage to the Senate: American’s Political Women, Grey House Publishing
• Political Corruption in America: An Encyclopedia of Scandals, Power & Greed, Grey House Publishing
• The Princeton Encyclopedia of the World Economy, Princeton University Press
• The Religious Right: A Reference Handbook, Grey House Publishing
• Speakers of the House of Representatives, 1789-2009, Grey House Publishing