Merson, L. (2005). The instant productivity toolkit: 21 simple ways to get more out of your job, yourself and your life, immediately. Sourcebooks.
Chicago-Zitierstil (17. Ausg.)Merson, Len. The Instant Productivity Toolkit: 21 Simple Ways to Get More Out of Your Job, Yourself and Your Life, Immediately. Naperville, Ill: Sourcebooks, 2005.
MLA-Zitierstil (9. Ausg.)Merson, Len. The Instant Productivity Toolkit: 21 Simple Ways to Get More Out of Your Job, Yourself and Your Life, Immediately. Sourcebooks, 2005.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.