APA (7th ed.) Zitazioa
Hjelmar, O. (2009). Treatment methods for waste to be landfilled. Nordic Council of Ministers.
Chicago Style (17th ed.) Zitazioa
Hjelmar, Ole. Treatment Methods for Waste to Be Landfilled. Copenhagen: Nordic Council of Ministers, 2009.
MLA (9th ed.) Zitazioa
Hjelmar, Ole. Treatment Methods for Waste to Be Landfilled. Nordic Council of Ministers, 2009.
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