Citazione Stile APA (7a Edizione)

Okun, B., & Richardson, R. W. (1961). Studies in Economic development. Holt, Rinehart and Winston.

Citazione stile Chigago Style (17a edizione)

Okun, Bernard, e Richard W. Richardson. Studies in Economic Development. New York: Holt, Rinehart and Winston, 1961.

Citatione MLA (9a ed.)

Okun, Bernard, e Richard W. Richardson. Studies in Economic Development. Holt, Rinehart and Winston, 1961.