Nickell, S. (1990). Unemployment: A Survey.
Cita Chicago (17th ed.)Nickell, S. Unemployment: A Survey. 1990.
Cita MLA (9th ed.)Nickell, S. Unemployment: A Survey. 1990.
Atenció: Aquestes cites poden no estar 100% correctes.
Cita APA (7th ed.)