Cita APA (7th ed.)

Nickell, S., Layard, R., & Ashenfelter, O. (1999). Labor Market Institutions and Economic Performance. Elsevier.

Cita Chicago (17th ed.)

Nickell, S., R. Layard, i O. Ashenfelter. Labor Market Institutions and Economic Performance. Elsevier, 1999.

Cita MLA (9th ed.)

Nickell, S., et al. Labor Market Institutions and Economic Performance. Elsevier, 1999.