FERTIG, R. T. (1985). The software revolution - trends, players, market dynamics in personal computer software - Robert T. Fertig. North Holland.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रFERTIG, Robert T. The Software Revolution - Trends, Players, Market Dynamics in Personal Computer Software - Robert T. Fertig. North Holland, 1985.
एमएलए (8वां संस्करण) प्रशस्ति पत्रFERTIG, Robert T. The Software Revolution - Trends, Players, Market Dynamics in Personal Computer Software - Robert T. Fertig. North Holland, 1985.
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