Tohutoro APA (7th ed.)

Okun, B. (1961). Studies in economic development. Holt.

Tohutoru Kātū Chicago (17th ed.)

Okun, Bernard. Studies in Economic Development. New York: Holt, 1961.

Tohutoro MLA (9th ed.)

Okun, Bernard. Studies in Economic Development. Holt, 1961.