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