Neibauer, A. R. (1988). The ABC's of WordPerfect 5. Sybex.
Lua i Stíl Chicago (17ú heag.)Neibauer, Alan R. The ABC's of WordPerfect 5. London: Sybex, 1988.
Lua MLA (9ú heag.)Neibauer, Alan R. The ABC's of WordPerfect 5. Sybex, 1988.
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