APA-čujuhus (7. p.)
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-čujuhus (17. p.)
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-čujuhus (9. p.)
Aalto, Kristiina. The Nordic Swan - from Past Experiences to Future Possibilities: The Third Evaluation of the Nordic Ecolabelling Scheme. Nordic Council of Ministers, 2008.
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