GLOBALVIEW-CO2C13 is freely available. Anyone using GLOBALVIEW-CO2C13 is agreeing to acknowledge its authors. The list of cooperating scientists and their organizations and institutions may become large and cumbersome to include as a reference, thus GLOBALVIEW-CO2C13 and its contributors should be referenced as [GLOBALVIEW-CO2C13, 2009], and in a list of references as
GLOBALVIEW-CO2C13: Cooperative Atmospheric Data Integration Project - δ13C of Carbon Dioxide. CD-ROM, NOAA ESRL, Boulder, Colorado [Also available on Internet via anonymous FTP to aftp.cmdl.noaa.gov, Path: products/globalview/co2c13], 2009.
which complies with the recommended reference styles of both the American Geophysical Union and the American Meteorological Society.