Fortum Corporation (Fortum). (2007). Annual report 2007. Review of Operations ([1st ed.].). [s.n.].
Citace podle Chicago (17th ed.)Fortum Corporation (Fortum). Annual Report 2007. Review of Operations. [1st ed.]. [S.l.]: [s.n.], 2007.
Citace podle MLA (9th ed.)Fortum Corporation (Fortum). Annual Report 2007. Review of Operations. [1st ed.]. [s.n.], 2007.
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