War in the Persian Gulf Reference Library: From Operation Desert Storm to Operation Iraqi Freedom
St. James Encyclopedia of Labor History Worldwide
The Gale Encyclopedia of the Unusual and Unexplained
Great Depression and the New Deal Reference Library
Industrial Revolution Reference Library
Nonfiction Classics for Students
Junior Worldmark Encyclopedia of Physical Geography
Political Theories for Students
Africa: An Encyclopedia for Students
Historic Events for Students: The Great Depresssion
Renaissance and Reformation Reference Library
The Ancient Near East: An Encyclopedia for Students