- Environment
- UXL Encyclopedia of Biomes , 3v, 2000
- History
- American Civil War Reference Library , 5v, 2000
- American Revolution Reference Library , 5v, 2000
- Colonial America Reference Library , 6v, 2000
- Reconstruction Era Reference Library , 4v, 2005
- Medicine
- The Gale Encyclopedia of Genetic Disorders , 3rd ed., 2v, 2010 (New)
- The Gale Encyclopedia of Genetic Disorders , 2nd ed., 2v, 2006
- Religion
- New Catholic Encyclopedia , 2nd ed., 15v, 2003
- New Catholic Encyclopedia Supplement 2009 , 2009
- New Catholic Encyclopedia Supplement 2010 , 2v, 2010 (New)
- New Catholic Encyclopedia Supplement 2011 (coming June 2011)
- New Catholic Encyclopedia Supplement, Jubilee Volume: The Wojtyla Years , 2001
- World Religions Reference Library , 6v, 2007 (New)
- Worldmark Encyclopedia of Religious Practices , 3v, 2006 (New)
- Science
- Alternative Energy , 3v, 2007 (New)
- Chemical Compounds , 3v, 2006
- Chemical Elements: From Carbon to Krypton , 3v, 2006
- UXL Encyclopedia of Biomes , 3v, 2000
- Social Science
Nov 172010