A biological survey for the nation - National Research Council Committee on the Formation of the National Biological Survey. Commission on the Formation of the National Biological Survey (Washington, D.C. : National Academies Press, 1993)
Keywords: RECURSOS NATURALES -- ADMINISTRACION -- ESTADOS UNIDOS; CONSERVACION DE LA BIODIVERSIDAD; CONSERVACION DE LOS RECURSOS NATURALES; COMUNIDADES BIOTICAS; GESTION DE ECOSISTEMAS