Cita APA (7a ed.)

Firth, R. (2011). Symbols: Public and private. Routledge.

Cita Chicago Style (17a ed.)

Firth, Raymond. Symbols: Public and Private. Abingdon, Oxon: Routledge, 2011.

Cita MLA (9a ed.)

Firth, Raymond. Symbols: Public and Private. Routledge, 2011.