Letter from Emperor Nicolas to the President of the United States

Chicago citation style
Department of State. 9/1789. Letter from Emperor Nicolas to the President of the United States. 1854-02-09. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6003718. (Accessed October 23, 2018.)
APA citation style
Department of State. 9/1789, (1854-02-09) Letter from Emperor Nicolas to the President of the United States. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6003718
MLA citation style
Department of State. 9/1789. Retrieved from the Digital Public Library of America <http://catalog.archives.gov/id/6003718>.
Note: These citations are programmatically generated and may be incomplete.