Welfens, P. J. J., & Addison, J. T. Innovation, employment and growth policy issues in the EU and the US.
芝加哥风格引文Welfens, Paul J. J., 与 John T. Addison. Innovation, Employment and Growth Policy Issues in the EU and the US. Berlin, Heidelberg Springer-Verlag Berlin Heidelberg 2009.
MLA引文Welfens, Paul J. J., 与 John T. Addison. Innovation, Employment and Growth Policy Issues in the EU and the US.
警告：这些引文格式不一定是100％准确.