APA-viite (7. p.)
Hellstern, C. (2010). A life cycle approach to buildings: Principles, calculations, design tools (First edition.). Institut für internationale.
Chicago-viite (17. p.)
Hellstern, Cornelia. A Life Cycle Approach to Buildings: Principles, Calculations, Design Tools. First edition. Munich, [Germany]: Institut für internationale, 2010.
MLA-viite (9. p.)
Hellstern, Cornelia. A Life Cycle Approach to Buildings: Principles, Calculations, Design Tools. First edition. Institut für internationale, 2010.
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