(2002). Research and development expenditure in industry 1987-2000. OECD.
芝加哥风格引文Research and Development Expenditure in Industry 1987-2000. Paris, Cedex, France: OECD, 2002.
MLA引文Research and Development Expenditure in Industry 1987-2000. OECD, 2002.
警告：这些引文格式不一定是100％准确.