Cita APA (7th ed.)
Levin, P. (2009). Write great essays (2nd ed.). Open University Press.
Cita Chicago (17th ed.)
Levin, Peter. Write Great Essays. 2nd ed. Maidenhead, England: Open University Press, 2009.
Cita MLA (9th ed.)
Levin, Peter. Write Great Essays. 2nd ed. Open University Press, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.