Penrose, William Roy <br/><br/>
Designing portable computerized instruments / 
W.R. and S.E. Penrose 
 - Blue Ridge Summit, Pa. :  Tab,  c1987 
 - 262 p. :  ill. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>0830613102 
<br/><br/><label>Subjects--Topical Terms: </label><br/>PORTABLE COMPUTERIZED INSTRUMENTS--DESIGN AND CONSTRUCTION
<br/><br/><label>LC Class. No.: </label>TK7878.4  / P467D