The Sixties in America Reference Library
The Crusades Reference Library
Crime and Punishment in America Reference Library
Space Exploration Reference Library
Early Civilizations in the Americas
Psychologists and Their Theories For Students
Feminism in Literature: A Gale Critical Companion
UXL Encyclopedia of Water Science
American Home Front in World War II
Reconstruction Era Reference Library
Checks and Balances: The Three Branches of the American Government
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
Encyclopedia of World Biography: 2010 Supplement
U.S. Immigration and Migration Reference Library