Geomag 7.0 Software : license and copyright information
The geomag 7.0 software code is in the public domain and not licensed or
under copyright. The information and software may be used freely by the
public. As required by 17 U.S.C. 403, third parties producing
copyrighted works consisting predominantly of the material produced by
U.S. government agencies must provide notice with such work(s)
identifying the U.S. Government material incorporated and stating that
such material is not subject to copyright protection..