Citazione Stile APA (7a Edizione)

Okun, A. M. (1972). The battle against unemployment. Norton.

Citazione stile Chigago Style (17a edizione)

Okun, Arthur M. The Battle Against Unemployment. New York: Norton, 1972.

Citatione MLA (9a ed.)

Okun, Arthur M. The Battle Against Unemployment. Norton, 1972.