National research council. (1996). National science education standards. National Academy press.
Chicago-referens (17:e uppl.)National research council. National Science Education Standards. United States: National Academy press, 1996.
MLA-referens (9:e uppl.)National research council. National Science Education Standards. National Academy press, 1996.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.