Kaufman, B. E. (1989). The economics of labor markets and labor relations (2nd ed.). Dryden Press.
Chicago-viite (17. p.)Kaufman, Bruce E. The Economics of Labor Markets and Labor Relations. 2nd ed. Chicago: Dryden Press, 1989.
MLA-viite (9. p.)Kaufman, Bruce E. The Economics of Labor Markets and Labor Relations. 2nd ed. Dryden Press, 1989.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.