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.
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Cita Chicago Style (17a ed.)
National Research Council (U.S.). Committee on the Formation of the National Biological Survey, Inc ebrary, y Peter H. Raven. A Biological Survey for the Nation. Washington, D.C.: National Academy Press, 1993.
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Cita MLA (9a ed.)
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.
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