ebrary, Inc, Quadrio Curzio, A., & Fortis, M. (2008). The EU and the economies of the Eastern European enlargement. Physica-Verlag.
芝加哥风格引文ebrary, Inc, Alberto Quadrio Curzio, 与 Marco Fortis. The EU and the Economies of the Eastern European Enlargement. Berlin: Physica-Verlag, 2008.
MLA引文ebrary, Inc, et al. The EU and the Economies of the Eastern European Enlargement. Physica-Verlag, 2008.
警告：这些引文格式不一定是100％准确.