Worth, Don D. <br/><br/>
Beneath Apple Prodos / 
by Don D.Warth and Pieter M.Lechner. 
 - Reston, Va. :  Reston Publishing Company,  1984. 
 - 1v. various pagings:  ill. ;  21cm. 
<br/><br/> Includes index and reference card. 
<br/><br/><label>ISBN: </label>0835904636 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pro DOS (Computer operating systems).