APA (7 वां संस्करण) प्रशस्ति पत्र

Butler-Bowdon, T. (2004). 50 success classics: Winning wisdom for work and life from 50 landmark books. Nicholas Brealey Pub..

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Butler-Bowdon, Tom. 50 Success Classics: Winning Wisdom for Work and Life from 50 Landmark Books. London ; Yarmouth, Me.: Nicholas Brealey Pub., 2004.

एमएलए (8वां संस्करण) प्रशस्ति पत्र

Butler-Bowdon, Tom. 50 Success Classics: Winning Wisdom for Work and Life from 50 Landmark Books. Nicholas Brealey Pub., 2004.

चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.