Cita APA (7a ed.)
ebrary, Inc. (2003). Life in the universe: An assessment of U.S. and international programs in astrobiology. National Academies Press.
Cita Chicago Style (17a ed.)
ebrary, Inc. Life in the Universe: An Assessment of U.S. and International Programs in Astrobiology. Washington, D.C.: National Academies Press, 2003.
Cita MLA (9a ed.)
ebrary, Inc. Life in the Universe: An Assessment of U.S. and International Programs in Astrobiology. National Academies Press, 2003.
Precaución: Estas citas no son 100% exactas.