Cita APA (7a ed.)

Horan, J. D. (1967). The Pinkertons: The detective dynasty that made history. s.n.].

Cita Chicago Style (17a ed.)

Horan, James David. The Pinkertons: The Detective Dynasty That Made History. [S.l: s.n.], 1967.

Cita MLA (9a ed.)

Horan, James David. The Pinkertons: The Detective Dynasty That Made History. s.n.], 1967.