Cita APA (7th ed.)

Osmond, A. (2013). Academic writing and grammar for students. Sage.

Cita Chicago (17th ed.)

Osmond, Alex. Academic Writing and Grammar for Students. Los Angeles, Calif: Sage, 2013.

Cita MLA (9th ed.)

Osmond, Alex. Academic Writing and Grammar for Students. Sage, 2013.