Παραπομπή σε μορφή APA (7η εκδ.)

Ashenfelter, O., & Hallock, K. F. (1997). Employment, labor unions and wages: The collected essays of Orley Ashenfelter, volume one. Edward Elgar.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Ashenfelter, Orley, και Kevin F. Hallock. Employment, Labor Unions and Wages: The Collected Essays of Orley Ashenfelter, Volume One. Cheltenham, U.K: Edward Elgar, 1997.

Παραπομπή σε μορφή MLA (9th εκδ.)

Ashenfelter, Orley, και Kevin F. Hallock. Employment, Labor Unions and Wages: The Collected Essays of Orley Ashenfelter, Volume One. Edward Elgar, 1997.