APA

Okun A. M., . (1975). Equality and Efficiency. USA: The Brookings Institution.

Chicago

Okun Arthur M, . 1975. Equality and Efficiency. USA: The Brookings Institution.

Harvard

Okun A. M., . (1975). Equality and Efficiency. USA: The Brookings Institution.

MLA

Okun Arthur M, . Equality and Efficiency. USA: The Brookings Institution. 1975.