Cita APA (7th ed.)
Andersen, R. (1994). Powerful writing skills. Barnes & Noble Books.
Cita Chicago (17th ed.)
Andersen, Richard. Powerful Writing Skills. New York: Barnes & Noble Books, 1994.
Cita MLA (9th ed.)
Andersen, Richard. Powerful Writing Skills. Barnes & Noble Books, 1994.
Atenció: Aquestes cites poden no estar 100% correctes.