GLOBALVIEW-CH4 is freely available. Anyone using GLOBALVIEW-CH4 is agreeing to acknowledge its authors. The list of cooperating scientists and their organizations and institutions is large and would be cumbersome to include as a reference, thus GLOBALVIEW-CH4 and its contributors should be referenced as [GLOBALVIEW-CH4, 2009], and in a list of references as
GLOBALVIEW-CH4: Cooperative Atmospheric Data Integration Project - Methane. CD-ROM, NOAA ESRL, Boulder, Colorado [Also available on Internet via anonymous FTP to aftp.cmdl.noaa.gov, Path: products/globalview/ch4], 2009.
which complies with the recommended reference styles of both the American Geophysical Union and the American Meteorological Society.