(1981). The measurement of scientific and technical activities: Proposed standard practice for surveys of research and experinmental development (4th ed.). Paris: Organisation for Economic Co-operation and Development.
Chicago Style CitationThe Measurement of Scientific and Technical Activities: Proposed Standard Practice for Surveys of Research and Experinmental Development. 4th ed. Paris: Organisation for Economic Co-operation and Development, 1981.
MLA CitationThe Measurement of Scientific and Technical Activities: Proposed Standard Practice for Surveys of Research and Experinmental Development. 4th ed. Paris: Organisation for Economic Co-operation and Development, 1981.
Warning: These citations may not always be 100% accurate.