Cita APA (7th ed.)

Osmond, A. (2016). Academic writing and grammar for students (2nd edition.). Sage.

Cita Chicago (17th ed.)

Osmond, Alex. Academic Writing and Grammar for Students. 2nd edition. Los Angeles: Sage, 2016.

Cita MLA (9th ed.)

Osmond, Alex. Academic Writing and Grammar for Students. 2nd edition. Sage, 2016.