Holiday, R. (2022). Discipline is destiny: The power of self-control. Portfolio/Penguin, an imprint of Penguin Random House LLC.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHoliday, Ryan. Discipline Is Destiny: The Power of Self-control. [New York, New York]: Portfolio/Penguin, an imprint of Penguin Random House LLC, 2022.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHoliday, Ryan. Discipline Is Destiny: The Power of Self-control. Portfolio/Penguin, an imprint of Penguin Random House LLC, 2022.
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