Cita APA (7th ed.)

O’Hara, M., & Dorling, D. (2020). Foreword. Policy Press.

Cita Chicago (17th ed.)

O’Hara, M., i D. Dorling. Foreword. Policy Press, 2020.

Cita MLA (9th ed.)

O’Hara, M., i D. Dorling. Foreword. Policy Press, 2020.