Cita APA (7a ed.)

Lock, J. (1990). Dreadful deeds and awful murders: Scotland Yard's first detectives, 1829 - 1878 (1. publ.). Barn Owl.

Cita Chicago Style (17a ed.)

Lock, Joan. Dreadful Deeds and Awful Murders: Scotland Yard's First Detectives, 1829 - 1878. 1. publ. Lydeard St. Lawrence: Barn Owl, 1990.

Cita MLA (8a ed.)

Lock, Joan. Dreadful Deeds and Awful Murders: Scotland Yard's First Detectives, 1829 - 1878. 1. publ. Barn Owl, 1990.