APA-referens (7:e uppl.)
Aalto, K. (2008). The Nordic swan - from past experiences to future possibilities: The third evaluation of the Nordic ecolabelling scheme. Nordic Council of Ministers.
Chicago-referens (17:e uppl.)
Aalto, Kristiina. The Nordic Swan - from Past Experiences to Future Possibilities: The Third Evaluation of the Nordic Ecolabelling Scheme. Copenhagen: Nordic Council of Ministers, 2008.
MLA-referens (9:e uppl.)
Aalto, Kristiina. The Nordic Swan - from Past Experiences to Future Possibilities: The Third Evaluation of the Nordic Ecolabelling Scheme. Nordic Council of Ministers, 2008.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.