Cita APA (7a ed.)

Pozen, R. C. (2012). Extreme productivity: Boost your results, reduce your hours. HarperBusiness.

Cita Chicago Style (17a ed.)

Pozen, Robert C. Extreme Productivity: Boost Your Results, Reduce Your Hours. New York: HarperBusiness, 2012.

Cita MLA (8a ed.)

Pozen, Robert C. Extreme Productivity: Boost Your Results, Reduce Your Hours. HarperBusiness, 2012.