Russell, H. (2019). The atlas of happiness: The global secrets of how to be happy (First U.S. edition.). Running Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRussell, Helen. The Atlas of Happiness: The Global Secrets of How to Be Happy. First U.S. edition. Philadelphia: Running Press, 2019.
एमएलए (8वां संस्करण) प्रशस्ति पत्रRussell, Helen. The Atlas of Happiness: The Global Secrets of How to Be Happy. First U.S. edition. Running Press, 2019.
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