Cita APA (7a ed.)

Ashenfelter, O., & Layard, R. (2003). Handbook of labor economics (1st ed., 5th impression.). Elsevier.

Cita Chicago Style (17a ed.)

Ashenfelter, Orley, y Richard Layard. Handbook of Labor Economics. 1st ed., 5th impression. Amsterdam [etc.]: Elsevier, 2003.

Cita MLA (9a ed.)

Ashenfelter, Orley, y Richard Layard. Handbook of Labor Economics. 1st ed., 5th impression. Elsevier, 2003.