Sauer, M., & Billings, J. (1802). An account of a geographical and astronomical expedition to the northern parts of Russia. London.
Chicago Style CitationSauer, Martin, and Joseph Billings. An Account of a Geographical and Astronomical Expedition to the Northern Parts of Russia. London, 1802.
MLA CitationSauer, Martin, and Joseph Billings. An Account of a Geographical and Astronomical Expedition to the Northern Parts of Russia. London, 1802.
Warning: These citations may not always be 100% accurate.