International Labour Office. Special Action Programme to Combat Forced Labour, ebrary, Inc, & Gao, Y. (2010). Concealed chains: Labour exploitation and Chinese migrants in Europe. International Labour Office.
芝加哥风格引文International Labour Office. Special Action Programme to Combat Forced Labour, Inc ebrary, 与 Yun Gao. Concealed Chains: Labour Exploitation and Chinese Migrants in Europe. Geneva: International Labour Office, 2010.
MLA引文International Labour Office. Special Action Programme to Combat Forced Labour, et al. Concealed Chains: Labour Exploitation and Chinese Migrants in Europe. International Labour Office, 2010.
警告：这些引文格式不一定是100％准确.