ebrary, Inc, Brown, L. D., Plewes, T. J., & Gerstein, M. A. (2005). Measuring research and development expenditures in the U.S. economy. National Academies Press.
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Dyfyniad Arddull Chicago
ebrary, Inc, Lawrence D. Brown, Thomas J. Plewes, and Marisa A. Gerstein. Measuring Research and Development Expenditures in the U.S. Economy. Washington, DC: National Academies Press, 2005.
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Dyfyniad MLA
ebrary, Inc, et al. Measuring Research and Development Expenditures in the U.S. Economy. National Academies Press, 2005.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.