War in the Persian Gulf Reference Library: From Operation Desert Storm to Operation Iraqi Freedom
U.S. Immigration and Migration Reference Library
The Gale Encyclopedia of the Unusual and Unexplained
St. James Encyclopedia of Labor History Worldwide
Nonfiction Classics for Students
Industrial Revolution Reference Library
Great Depression and the New Deal Reference Library
Junior Worldmark Encyclopedia of Physical Geography
Political Theories for Students
Africa: An Encyclopedia for Students
Renaissance and Reformation Reference Library
Historic Events for Students: The Great Depresssion
Learning About the Holocaust: A Student's Guide