Cita APA (7a ed.)

Radford, E., & Radford, M. A. (1970). Murder speaks: A 'Doctor Manson' detective novel. Hale.

Cita Chicago Style (17a ed.)

Radford, E., y M. A. Radford. Murder Speaks: A 'Doctor Manson' Detective Novel. London: Hale, 1970.

Cita MLA (8a ed.)

Radford, E., y M. A. Radford. Murder Speaks: A 'Doctor Manson' Detective Novel. Hale, 1970.