Wessel, C. (1999). On the analytical representation of direction: An attempt applied chiefly to solving plane and spherical polygons. The Royal Danish Academy of Sciences and Letters.
Chicago Style (17th ed.) CitationWessel, Caspar. On the Analytical Representation of Direction: An Attempt Applied Chiefly to Solving Plane and Spherical Polygons. Copenhagen: The Royal Danish Academy of Sciences and Letters, 1999.
MLA (9th ed.) CitationWessel, Caspar. On the Analytical Representation of Direction: An Attempt Applied Chiefly to Solving Plane and Spherical Polygons. The Royal Danish Academy of Sciences and Letters, 1999.
Warning: These citations may not always be 100% accurate.