The following books are located in the Reference Collection on the first floor of the UI Library and are shelved using the Library of Congress classification system.
| Title/Description | Call Number |
| Dictionary of Physical Geography | Ref GB10.D53 2000 |
| Encyclopedia of Geographic Information Science | Ref G70.212.E53 2008 |
| Encyclopedia of Geography | Ref G63 E554 2010 Vol. 1-6 |
| Encyclopedia of GIS | Ref G70.212.E534 2008 |
| Encyclopedia of Global Environmental Change | Ref GE 149.E443 2002 Vol. 1-5 |
| Encyclopedia of Global Warming Science & Technology | Ref QC981.8.G56J638 2009 |
| Encyclopedia of Human Geography | Ref GF4.E54 2006 |
| Encyclopedia of the Arctic | Ref G606 E49 2005 Vol. 1-3 |
| Europa World Year Book | Ref D2.E82 |
| Merriam-Webster’s Geographical Dictionary | Ref G103.5.W42 1997 |
| Notable Natural Disasters | Ref GB 5014.N373 2007 Vol. 1-3 |
| Statesman's Yearbook | Ref JA51.S7 |
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