Cita APA (7th ed.)

Roberts, H. E. (2014). M - Z. Routledge.

Cita Chicago (17th ed.)

Roberts, Helene E. M - Z. New York [u.a.]: Routledge, 2014.

Cita MLA (8th ed.)

Roberts, Helene E. M - Z. Routledge, 2014.