European Trade Union Institute (ETUI). (1992). Environmental protection in Europe: Situation and trade union views. Brussels: ETUI.
Cita Chicago (17th ed.)European Trade Union Institute (ETUI). Environmental Protection in Europe: Situation and Trade Union Views. Brussels: ETUI, 1992.
Cita MLA (8th ed.)European Trade Union Institute (ETUI). Environmental Protection in Europe: Situation and Trade Union Views. Brussels: ETUI, 1992.
Atenció: Aquestes cites poden no estar 100% correctes.