Cita APA (7th ed.)
ebrary, Inc. (2006). The Hutchinson dictionary of spelling. Helicon.
Cita Chicago (17th ed.)
ebrary, Inc. The Hutchinson Dictionary of Spelling. Abingdon, England: Helicon, 2006.
Cita MLA (9th ed.)
ebrary, Inc. The Hutchinson Dictionary of Spelling. Helicon, 2006.
Atenció: Aquestes cites poden no estar 100% correctes.