APA-referens (7:e uppl.)
National Research Council (U.S.). Committee on the Formation of the National Biological Survey, ebrary, Inc, & Raven, P. H. (1993). A biological survey for the nation. National Academy Press.
Chicago-referens (17:e uppl.)
National Research Council (U.S.). Committee on the Formation of the National Biological Survey, Inc ebrary, och Peter H. Raven. A Biological Survey for the Nation. Washington, D.C.: National Academy Press, 1993.
MLA-referens (9:e uppl.)
National Research Council (U.S.). Committee on the Formation of the National Biological Survey, et al. A Biological Survey for the Nation. National Academy Press, 1993.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.