Cita APA (7a ed.)

Levitan, S. A., & Werneke, D. (1984). Productivity: Problems, prospects, and policies. Johns Hopkins University Press.

Cita Chicago Style (17a ed.)

Levitan, Sar A., y Diane Werneke. Productivity: Problems, Prospects, and Policies. Baltimore [etc.]: Johns Hopkins University Press, 1984.

Cita MLA (9a ed.)

Levitan, Sar A., y Diane Werneke. Productivity: Problems, Prospects, and Policies. Johns Hopkins University Press, 1984.