Heppell, M. How to Retire 10 Years Early: Your Plan for Less Work and More Life. Pearson Education UK.
Citazione stile Chigago Style (17a edizione)Heppell, Michael. How to Retire 10 Years Early: Your Plan for Less Work and More Life. Pearson Education UK.
Citatione MLA (8a ed.)Heppell, Michael. How to Retire 10 Years Early: Your Plan for Less Work and More Life. Pearson Education UK.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.