Krumm, R. (1990). Teach yourself...WordPerfect: 5.1 for desktop publishing. Management Information Source, Inc.
Chicago Style aipamenaKrumm, Rob. Teach Yourself...WordPerfect: 5.1 for Desktop Publishing. Portland, Oregon: Management Information Source, Inc, 1990.
MLA aipamenaKrumm, Rob. Teach Yourself...WordPerfect: 5.1 for Desktop Publishing. Management Information Source, Inc, 1990.
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