Cita APA (7a ed.)

Sereny, G. (1973). The case of Mary Bell: A portrait of a child who murdered. McGraw-Hill.

Cita Chicago Style (17a ed.)

Sereny, Gitta. The Case of Mary Bell: A Portrait of a Child Who Murdered. New York [u.a.]: McGraw-Hill, 1973.

Cita MLA (9a ed.)

Sereny, Gitta. The Case of Mary Bell: A Portrait of a Child Who Murdered. McGraw-Hill, 1973.