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