Mincberg, Mella Word perfect 5.1 : made easy / Mella Mincberg - New York : Osborne McGraw Hill, c1990. - xxviii, 1071 p. : ill. ; 23 cm. ISBN: 0078816254 LCCN: Subjects--Topical Terms: Data processingComputer science LC Class. No.: Z52.5 / .W65M54 1990