(2002). Research and development expenditure in industry 1987-2000. OECD.
Chicago-viite (17. p.)Research and Development Expenditure in Industry 1987-2000. Paris, Cedex, France: OECD, 2002.
MLA-viite (9. p.)Research and Development Expenditure in Industry 1987-2000. OECD, 2002.
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