Cita APA (7a ed.)

Leigh, D. (1980). The frontiers of secrecy: Closed government in Britain. Junction Books.

Cita Chicago Style (17a ed.)

Leigh, David. The Frontiers of Secrecy: Closed Government in Britain. London: Junction Books, 1980.

Cita MLA (8a ed.)

Leigh, David. The Frontiers of Secrecy: Closed Government in Britain. Junction Books, 1980.