ebrary, Inc. (1998). Future directions for the National Science Foundation's Arctic Natural Sciences Program. National Academy Press.
Chicago-referens (17:e uppl.)ebrary, Inc. Future Directions for the National Science Foundation's Arctic Natural Sciences Program. Washington, D.C.: National Academy Press, 1998.
MLA-referens (9:e uppl.)ebrary, Inc. Future Directions for the National Science Foundation's Arctic Natural Sciences Program. National Academy Press, 1998.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.