Robert D. Hart
发表
John J. Mewes,
Stephen G. Gaddy,
Robert D. Hart,
2008,
Encyclopedia of GIS.
John J. Mewes,
Stephen G. Gaddy,
Robert D. Hart,
2017,
Encyclopedia of GIS.
Martin Saunders,
Robert D. Hart,
Mary S. Saunders,
2004
.