Penfold, R.A. A concise introduction to wordperfect [Books]. R.A.Penfold. - Shepherds bush road, London Bernard Babani pub.Ltd. 1989 - Pages: 90. ISBN: 0859342077 0.00 Subjects--Personal Names: WordPerfect (Computer file). Dewey Class. No.: Z/52.5.W65 / PEN