Dublin, Peter. creator Pressman, Harvey. Barnett, Eileen. text New York HarperCollins College Publishers c1994 monographic 176 p. : ill. ; 24 cm. + 1 computer disk (3 1/2 in.). System requirements for computer disk: IBM-compatible PC; 640K RAM; DOS 3.3 or later; Epson, IBM/ProPrinter, HP LaserJet or compatible printer. Science Science 372 HAR 1994 A021 Or. 0065016742