UXL Encyclopedia of Drugs and Addictive Substances
History of World Trade Since 1450
Extremist Groups Information for Students
Literary Themes for Students: War and Peace
Concise Major 21st-Century Writers
The Sixties in America Reference Library
Encyclopedia of World Biography: 2004 Supplement
Checks and Balances: The Three Branches of the American Government
Early Civilizations in the Americas
Reconstruction Era Reference Library
UXL Encyclopedia of Water Science
Space Exploration Reference Library
American Home Front in World War II
Encyclopedia of World Biography: 2005 Supplement
The Crusades Reference Library
Feminism in Literature: A Gale Critical Companion