Butler, P. (1993). The Economist style guide: The essentials of elegant writing. Addison-Wesley Pub. Co.
Chicago Style (17th ed.) CitationButler, Penny. The Economist Style Guide: The Essentials of Elegant Writing. Reading, Mass: Addison-Wesley Pub. Co, 1993.
MLA (9th ed.) CitationButler, Penny. The Economist Style Guide: The Essentials of Elegant Writing. Addison-Wesley Pub. Co, 1993.
Warning: These citations may not always be 100% accurate.