Lua APA (7ú heag.)

Ingalsbe, L. S., & Simonson, B. D. (1990). WordPerfect 5.0: Workbook and reference. Irwin.

Lua i Stíl Chicago (17ú heag.)

Ingalsbe, Lon S., agus Brent D. Simonson. WordPerfect 5.0: Workbook and Reference. Homewood, Ill: Irwin, 1990.

Lua MLA (9ú heag.)

Ingalsbe, Lon S., agus Brent D. Simonson. WordPerfect 5.0: Workbook and Reference. Irwin, 1990.

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