APA (7 वां संस्करण) प्रशस्ति पत्र
Browning, H., & Van Velsor, E. (1999). Three keys to development: Defining and meeting your leadership challenges. Center for Creative Leadership.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Browning, Henry, और Ellen Van Velsor. Three Keys to Development: Defining and Meeting Your Leadership Challenges. Greensboro, N.C.: Center for Creative Leadership, 1999.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Browning, Henry, और Ellen Van Velsor. Three Keys to Development: Defining and Meeting Your Leadership Challenges. Center for Creative Leadership, 1999.
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