Clayton, M. Brilliant Time Management: What the most productive people know do and say (1.). Pearson Education UK.
Chicago-Zitierstil (17. Ausg.)Clayton, Mike. Brilliant Time Management: What the Most Productive People Know Do and Say. 1. Pearson Education UK.
MLA-Zitierstil (8. Ausg.)Clayton, Mike. Brilliant Time Management: What the Most Productive People Know Do and Say. 1. Pearson Education UK.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.