(2005). Scientific American Supplement No. 822, October 3, 1891. Project Gutenberg.
Chicago Style (17th ed.) CitationScientific American Supplement No. 822, October 3, 1891. Project Gutenberg, 2005.
MLA (9th ed.) CitationScientific American Supplement No. 822, October 3, 1891. Project Gutenberg, 2005.
Warning: These citations may not always be 100% accurate.