Jude Robbins. (1990). Wordperfect 5.1 step by step. Howard W Sams.
Chicago Edition CitationJude Robbins. Wordperfect 5.1 Step by Step. Howard W Sams, 1990.
MLA Edition CitationJude Robbins. Wordperfect 5.1 Step by Step. Howard W Sams, 1990.
Warning: These citations may not always be 100% accurate.