ebrary, Inc, & Loukacheva, N. (2010). Polar law textbook. Nordic Council of Ministers.
芝加哥风格引文ebrary, Inc, 与 Natalia Loukacheva. Polar Law Textbook. Copenhagen: Nordic Council of Ministers, 2010.
MLA引文ebrary, Inc, 与 Natalia Loukacheva. Polar Law Textbook. Nordic Council of Ministers, 2010.
警告：这些引文格式不一定是100％准确.