Não informado. (1995). Theory and practice of object systems. John Wiley & Sons.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Theory and Practice of Object Systems. New York: John Wiley & Sons, 1995.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Theory and Practice of Object Systems. John Wiley & Sons, 1995.
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