00393pamaa2200145 4500 0000016213 20070731090000.0 0201483548 (pbk.) 004.087 LAZ HV1569.5 LAZ 1996 Lazzaro Adapting PCs for disablities Joseph J. Lazzaro. Massachusetts: Addison-Wesley, 1996. xii, 304p; 23cm. Microcomputers