Shelds , M. (2010). Essay Writing. Sage.
Cita Chicago (17th ed.)Shelds , Munling. Essay Writing. Delhi: Sage, 2010.
Cita MLA (9th ed.)Shelds , Munling. Essay Writing. Sage, 2010.
Atenció: Aquestes cites poden no estar 100% correctes.
Cita APA (7th ed.)