The Crusades Reference Library
The Sixties in America Reference Library
Early Civilizations in the Americas
Psychologists and Their Theories For Students
UXL Encyclopedia of Water Science
American Home Front in World War II
Checks and Balances: The Three Branches of the American Government
Space Exploration Reference Library
Encyclopedia of World Biography: 2005 Supplement
Crime and Punishment in America Reference Library
Encyclopedia of Clothing and Fashion
Encyclopedia of Genocide and Crimes Against Humanity
Ancient Europe, 8000 B.C. to A.D. 1000: An Encyclopedia of the Barbarian World
Encyclopedia of Irish History and Culture
Encyclopedia of Russian History
War in the Persian Gulf Reference Library: From Operation Desert Storm to Operation Iraqi Freedom
Encyclopedia of World Biography: 2010 Supplement
Tobacco in History and Culture: An Encyclopedia