Citing the original authors of published papers and reports is required when using data and information from this CD-ROM. Not all of the references need necessarily be cited, unless specifically stated, but in general both the primary reference (usually the earliest) and the most up-to-date reference should be used. Also, papers describing the development of the time scale, where appropriate, should be included.

An example of a citation of data from this CD-ROM:

Alley, R.B., A.J. Gow, S.J. Johnsen, J. Kipfstuhl, D.A. Meese, and Th. Thorsteinsson. 1995. Comparison of deep ice cores. Nature 373:393-394.

Where appropriate, users should also cite this CD-ROM. Citations in reference lists accompanying published work are stated:

An example of a statement within a publication acknowledging data might read:

"Data provided by the National Snow and Ice Data Center, University of Colorado at Boulder, and the WDC for Paleoclimatology, National Geophysical Data Center, Boulder, Colorado."