Merrin, R. (1993). WordPerfect 6 for DOS Instant Reference. Singapore: Tech Publications.
शिकागो स्टाइल उद्धरणMerrin, Robin. WordPerfect 6 for DOS Instant Reference. Singapore: Tech Publications, 1993.
एमएलए उद्धरणMerrin, Robin. WordPerfect 6 for DOS Instant Reference. Singapore: Tech Publications, 1993.
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