(2012). Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 8 "Cube" to "Daguerre, Louis". Project Gutenberg.
Chicago Style (17th ed.) CitationEncyclopaedia Britannica, 11th Edition, Volume 7, Slice 8 "Cube" to "Daguerre, Louis". Project Gutenberg, 2012.
MLA (9th ed.) CitationEncyclopaedia Britannica, 11th Edition, Volume 7, Slice 8 "Cube" to "Daguerre, Louis". Project Gutenberg, 2012.
Warning: These citations may not always be 100% accurate.