Cita APA (7a ed.)

Steel, P. (2012). The procrastination equation: How to stop putting things off and start getting things done. Pearson.

Cita Chicago Style (17a ed.)

Steel, Piers. The Procrastination Equation: How to Stop Putting Things off and Start Getting Things Done. Harlow, England: Pearson, 2012.

Cita MLA (9a ed.)

Steel, Piers. The Procrastination Equation: How to Stop Putting Things off and Start Getting Things Done. Pearson, 2012.