Heppell, M. How to Retire 10 Years Early: Your Plan for Less Work and More Life. Pearson Education UK.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHeppell, Michael. How to Retire 10 Years Early: Your Plan for Less Work and More Life. Pearson Education UK.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHeppell, Michael. How to Retire 10 Years Early: Your Plan for Less Work and More Life. Pearson Education UK.
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