Heppell, M. How to Retire 10 Years Early: Your Plan for Less Work and More Life. Pearson Education UK.
Chicago-Zitierstil (17. Ausg.)Heppell, Michael. How to Retire 10 Years Early: Your Plan for Less Work and More Life. Pearson Education UK.
MLA-Zitierstil (8. Ausg.)Heppell, Michael. How to Retire 10 Years Early: Your Plan for Less Work and More Life. Pearson Education UK.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.