Hendricks, G. (2009). The big leap: Conquer your hidden fear and take life to the next level (Unabridged.).
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHendricks, Gay. The Big Leap: Conquer Your Hidden Fear and Take Life to the Next Level. Unabridged. 2009.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHendricks, Gay. The Big Leap: Conquer Your Hidden Fear and Take Life to the Next Level. Unabridged. 2009.
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