Cita APA (7th ed.)
ebrary, Inc, & Economist Books. (2005). Style guide ([9th ed.].). Profile Books.
Cita Chicago (17th ed.)
ebrary, Inc, i Economist Books. Style Guide. [9th ed.]. London: Profile Books, 2005.
Cita MLA (9th ed.)
ebrary, Inc, i Economist Books. Style Guide. [9th ed.]. Profile Books, 2005.
Atenció: Aquestes cites poden no estar 100% correctes.