Cita APA (7a ed.)

Firth, M. (1979). The disclosure of information by companies. [s.n.].

Cita Chicago Style (17a ed.)

Firth, Michael. The Disclosure of Information by Companies. [S.l.]: [s.n.], 1979.

Cita MLA (9a ed.)

Firth, Michael. The Disclosure of Information by Companies. [s.n.], 1979.