Tohutoro APA (7th ed.)

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

Tohutoru Kātū Chicago (17th ed.)

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

Tohutoro MLA (9th ed.)

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