Press, R. N. A. (1994). Promoting The National Spatial Data Infrastructure Through Partnerships. National Academy Press.
Chicago-referens (17:e uppl.)Press, Red. National Academy. Promoting The National Spatial Data Infrastructure Through Partnerships. National Academy Press, 1994.
MLA-referens (8:e uppl.)Press, Red. National Academy. Promoting The National Spatial Data Infrastructure Through Partnerships. National Academy Press, 1994.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.