Reference items are located in the Information Commons on the first floor of Fogler Library. If "Ref" is not at the beginning of the call number they will be shelved in the regular book stacks on the 2nd and 3rd floors. More options can be found by searching the URSUS catalog using keywords like spectra atlases, spectroscopy atlases, spectra tables, or spectroscopy tables.
Aldrich Library of 13C and 1H FT-NMR Spectra by 
The Aldrich Library of FT-IR Spectra by 
The Atlas of Near Infrared Spectra by 
Handbook of Infrared and Raman Spectra of Inorganic Compounds and Organic Salts by Handbook of Proton-NMR Spectra and Data by 
Practical Guide and Spectral Atlas for Interpretive near-Infrared Spectroscopy by Sadtler Guide to Carbon-13 NMR Spectra by 
UV-VIS Atlas of Organic Compounds by 
Wiley / NBS Registry of Mass Spectral Data, 7 Volume Set by