Tracy, B. (2010). No excuses!: The power of self-discipline; 21 ways to achieve lasting happiness and success (Unabridged.). Ascent Audio.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रTracy, Brian. No Excuses!: The Power of Self-discipline; 21 Ways to Achieve Lasting Happiness and Success. Unabridged. Rego Park: Ascent Audio, 2010.
एमएलए (8वां संस्करण) प्रशस्ति पत्रTracy, Brian. No Excuses!: The Power of Self-discipline; 21 Ways to Achieve Lasting Happiness and Success. Unabridged. Ascent Audio, 2010.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.