Cita APA (7a ed.)

Pigou, A. C. (1913). Unemployment. Williams & Norgate.

Cita Chicago Style (17a ed.)

Pigou, A. C. Unemployment. London: Williams & Norgate, 1913.

Cita MLA (8a ed.)

Pigou, A. C. Unemployment. Williams & Norgate, 1913.