The Sixties in America Reference Library
The Crusades Reference Library
Crime and Punishment in America Reference Library
Early Civilizations in the Americas
Feminism in Literature: A Gale Critical Companion
Psychologists and Their Theories For Students
Space Exploration Reference Library
UXL Encyclopedia of Water Science
American Home Front in World War II
Checks and Balances: The Three Branches of the American Government
Reconstruction Era Reference Library
Encyclopedia of World Biography: 2005 Supplement
Encyclopedia of Russian History
Encyclopedia of Irish History and Culture
Tobacco in History and Culture: An Encyclopedia
War in the Persian Gulf Reference Library: From Operation Desert Storm to Operation Iraqi Freedom
U.S. Immigration and Migration Reference Library
Encyclopedia of World Biography: 2010 Supplement