Packard, T., Koettl, J., & Montenegro, C. (2012). In from the shadow: Integrating Europe's informal labor. World Bank.
芝加哥风格引文Packard, Truman, Johannes Koettl, 与 Claudio Montenegro. In from the Shadow: Integrating Europe's Informal Labor. Washington, D.C.: World Bank, 2012.
MLA引文Packard, Truman, et al. In from the Shadow: Integrating Europe's Informal Labor. World Bank, 2012.
警告：这些引文格式不一定是100％准确.