APA-viite (7. p.)
Viikari, L. (2008). The environmental element in space law: Assessing the present and charting the future. Martinus Nijhoff Publishers.
Chicago-viite (17. p.)
Viikari, Lotta. The Environmental Element in Space Law: Assessing the Present and Charting the Future. Leiden ; Boston: Martinus Nijhoff Publishers, 2008.
MLA-viite (9. p.)
Viikari, Lotta. The Environmental Element in Space Law: Assessing the Present and Charting the Future. Martinus Nijhoff Publishers, 2008.
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