SPENCER , D. .. (1977). GAME PLAYING WITH BASIC. HYDEN BOOK CO.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSPENCER , D .D. GAME PLAYING WITH BASIC. N.Y: HYDEN BOOK CO, 1977.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSPENCER , D .D. GAME PLAYING WITH BASIC. HYDEN BOOK CO, 1977.
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