Encyclopedia Britannica. (2008). The Britannica Guide to the Ideas that Made the Modern World. Running Press.
Chicago Edition CitationEncyclopedia Britannica. The Britannica Guide to the Ideas That Made the Modern World. Philadelphia: Running Press, 2008.
MLA Edition CitationEncyclopedia Britannica. The Britannica Guide to the Ideas That Made the Modern World. Running Press, 2008.
Warning: These citations may not always be 100% accurate.