Organisation for Economic Co-operation and Development. (1989). The Measurement of scientific and technical activities: R&D statistics and output measurement in the higher education sector. Paris: Organisation for Economic Co-operation and Development.
استشهاد بنمط شيكاغوOrganisation for Economic Co-operation and Development. The Measurement of Scientific and Technical Activities: R&D Statistics and Output Measurement in the Higher Education Sector. Paris: Organisation for Economic Co-operation and Development, 1989.
MLA استشهادOrganisation for Economic Co-operation and Development. The Measurement of Scientific and Technical Activities: R&D Statistics and Output Measurement in the Higher Education Sector. Paris: Organisation for Economic Co-operation and Development, 1989.