Cita APA (7a ed.)

Thor, C. G., & Christopher, W. F. (1993). Handbook for productivity measurement and improvement. Productivity press.

Cita Chicago Style (17a ed.)

Thor, Carl G., y William F. Christopher. Handbook for Productivity Measurement and Improvement. Cambridge, Massachusetts [etc.]: Productivity press, 1993.

Cita MLA (9a ed.)

Thor, Carl G., y William F. Christopher. Handbook for Productivity Measurement and Improvement. Productivity press, 1993.