Holmes, C. (2022). Happier hour: How to beat distraction, expand your time, and focus on what matters most (First Gallery Books hardcover edition.). Gallery Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHolmes, Cassie. Happier Hour: How to Beat Distraction, Expand Your Time, and Focus on What Matters Most. First Gallery Books hardcover edition. New York, NY: Gallery Books, 2022.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHolmes, Cassie. Happier Hour: How to Beat Distraction, Expand Your Time, and Focus on What Matters Most. First Gallery Books hardcover edition. Gallery Books, 2022.
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