Covey, S. R. (2004). The seven habits of highly effective people ([2nd ed.].). Pocket Books.
Citace podle Chicago (17th ed.)Covey, Stephen R. The Seven Habits of Highly Effective People. [2nd ed.]. London: Pocket Books, 2004.
Citace podle MLA (9th ed.)Covey, Stephen R. The Seven Habits of Highly Effective People. [2nd ed.]. Pocket Books, 2004.
Upozornění: Tyto citace jsou generovány automaticky. Nemusí být zcela správně podle citačních pravidel..