BETZ, F. (1987). Managing Technology Competing Trough New Ventures, Innovation And Corporate Research Frederick Betz. Prentice Hall.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBETZ, Frederick. Managing Technology Competing Trough New Ventures, Innovation And Corporate Research Frederick Betz. Prentice Hall, 1987.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBETZ, Frederick. Managing Technology Competing Trough New Ventures, Innovation And Corporate Research Frederick Betz. Prentice Hall, 1987.
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