Cita APA

Gravelle, J., & Rogers, C. (2020). Researching the Police in the 21st Century. Palgrave Macmillan UK.

Citación estilo Chicago

Gravelle, J., y C. Rogers. Researching the Police in the 21st Century. Palgrave Macmillan UK, 2020.

Cita MLA

Gravelle, J., y C. Rogers. Researching the Police in the 21st Century. Palgrave Macmillan UK, 2020.