Não informado. (1971). Software: Practice and Experience. John Wiley & Sons.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Software: Practice and Experience. London: John Wiley & Sons, 1971.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Software: Practice and Experience. John Wiley & Sons, 1971.
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