APA引文

Viikari, L. (2008). The environmental element in space law: Assessing the present and charting the future. Martinus Nijhoff Publishers.

芝加哥风格引文

Viikari, Lotta. The Environmental Element in Space Law: Assessing the Present and Charting the Future. Leiden ; Boston: Martinus Nijhoff Publishers, 2008.

MLA引文

Viikari, Lotta. The Environmental Element in Space Law: Assessing the Present and Charting the Future. Martinus Nijhoff Publishers, 2008.

警告:这些引文格式不一定是100%准确.