Cita APA (7th ed.)

Polachek, S. W., & Siebert, W. S. (1993). The economics of earnings. Cambridge University Press.

Cita Chicago (17th ed.)

Polachek, S. W., i W. S. Siebert. The Economics of Earnings. Cambridge ; New York: Cambridge University Press, 1993.

Cita MLA (8th ed.)

Polachek, S. W., i W. S. Siebert. The Economics of Earnings. Cambridge University Press, 1993.