Lua APA (7ú heag.)

David Card, O. A. (2011). Handbook of Labor Economics. ELSEVIER.

Lua i Stíl Chicago (17ú heag.)

David Card, Orley Ashenfelter. Handbook of Labor Economics. ELSEVIER, 2011.

Lua MLA (8ú heag.)

David Card, Orley Ashenfelter. Handbook of Labor Economics. ELSEVIER, 2011.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.