Цитирование APA (7-е изд.)

Steel, P. (2011). The procrastination equation: How to stop putting things off and start getting stuff done (1st U.S. ed.). Harper.

Цитирование в стиле Чикаго (17-е изд.)

Steel, Piers. The Procrastination Equation: How to Stop Putting Things off and Start Getting Stuff Done. 1st U.S. ed. New York: Harper, 2011.

Цитирование MLA (8-е изд.)

Steel, Piers. The Procrastination Equation: How to Stop Putting Things off and Start Getting Stuff Done. 1st U.S. ed. Harper, 2011.

Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.