Heppell, M. How to Retire 10 Years Early: Your Plan for Less Work and More Life. Pearson Education UK.
Chicagoスタイル(17版)引用形式Heppell, Michael. How to Retire 10 Years Early: Your Plan for Less Work and More Life. Pearson Education UK.
MLA(8版)引用形式Heppell, Michael. How to Retire 10 Years Early: Your Plan for Less Work and More Life. Pearson Education UK.
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