European Trade Union Institute (ETUI). (1992). Environmental protection in Europe: Situation and trade union views. Brussels: ETUI.
芝加哥风格引文European Trade Union Institute (ETUI). Environmental Protection in Europe: Situation and Trade Union Views. Brussels: ETUI, 1992.
MLA引文European Trade Union Institute (ETUI). Environmental Protection in Europe: Situation and Trade Union Views. Brussels: ETUI, 1992.
警告：这些引文格式不一定是100％准确.