Jorgensen, F. a. O. (2023). Cost studies in European forestry. Royal College of Forestry, Stockholm.
Chicago-viite (17. p.)Jorgensen, Frits and Opheim. Cost Studies in European Forestry. Royal College of Forestry, Stockholm, 2023.
MLA-viite (9. p.)Jorgensen, Frits and Opheim. Cost Studies in European Forestry. Royal College of Forestry, Stockholm, 2023.
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