Zook, C., & Allen, J. (2002). Profit from the core: Growth strategy in an era of turbulence. The ChungRim Publishing.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रZook, Chris, और James Allen. Profit from the Core: Growth Strategy in an Era of Turbulence. Seoul: The ChungRim Publishing, 2002.
एमएलए (8वां संस्करण) प्रशस्ति पत्रZook, Chris, और James Allen. Profit from the Core: Growth Strategy in an Era of Turbulence. The ChungRim Publishing, 2002.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.