Krumm, R. (1990). teach yourself ... WordPerfect 5.1 for desktop publishing. Management Information source, Inc.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रKrumm, Rob. Teach Yourself ... WordPerfect 5.1 for Desktop Publishing. Oregon: Management Information source, Inc, 1990.
एमएलए (9वां संस्करण) प्रशस्ति पत्रKrumm, Rob. Teach Yourself ... WordPerfect 5.1 for Desktop Publishing. Management Information source, Inc, 1990.
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