APA-referens (7:e uppl.)
ebrary, Inc. (2002). Signs of life: A report based on the April 2000 workshop on life detection techniques. National Academy Press.
Chicago-referens (17:e uppl.)
ebrary, Inc. Signs of Life: A Report Based on the April 2000 Workshop on Life Detection Techniques. Washington, D.C.: National Academy Press, 2002.
MLA-referens (9:e uppl.)
ebrary, Inc. Signs of Life: A Report Based on the April 2000 Workshop on Life Detection Techniques. National Academy Press, 2002.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.