APA (7th ed.) Citation

Ehrenberg, R. G., & Smith, R. S. (1991). Modern labor economics: Theory and public policy (4th ed.). Harper Collins.

Chicago Style (17th ed.) Citation

Ehrenberg, Ronald G., and Robert S. Smith. Modern Labor Economics: Theory and Public Policy. 4th ed. New York: Harper Collins, 1991.

MLA (9th ed.) Citation

Ehrenberg, Ronald G., and Robert S. Smith. Modern Labor Economics: Theory and Public Policy. 4th ed. Harper Collins, 1991.