Cita APA (7a ed.)

Greenhalgh, C. A., Layard, R., & Oswald, A. J. (1983). The causes of unemployment. Clarendon Press.

Cita Chicago Style (17a ed.)

Greenhalgh, C. A., Richard Layard, y Andrew J. Oswald. The Causes of Unemployment. Oxford: Clarendon Press, 1983.

Cita MLA (9a ed.)

Greenhalgh, C. A., et al. The Causes of Unemployment. Clarendon Press, 1983.