The Reference Collection holds three general encyclopedias:
- Encyclopaedia Britannica (2010)
- Encyclopedia Americana (2006)
- Collier's Encyclopedia (1997)
In addition, the Collection includes many specialized, one-volume and multi-volume encyclopedias:
- Encyclopedia of the Modern Middle East and North Africa
- Routledge Encyclopedia of Philosophy
- Encyclopedia of the Crusades
- Encyclopedia of Historic Forts
- Encyclopedia of the American Armed Forces
- Encyclopedia of United States National Security
- International Encyclopedia of the Social Sciences
- International Military and Defense Encyclopedia
The Collection includes many other items that are encyclopedic in nature or content but do not have the word "encyclopedia" in their title.
