Geo-Data: World Geographic Encyclopedia
UXL Encyclopedia of World Biography
Nonfiction Classics for Students
Great Depression and the New Deal Reference Library
St. James Encyclopedia of Labor History Worldwide
Industrial Revolution Reference Library
The Gale Encyclopedia of the Unusual and Unexplained
Reference Guide to World Literature
CDs, Super Glue, & Salsa: How Everyday Products Are Made
Learning and Memory: Macmillan Psychology Reference Series