Spencer, Richard H. <br/><br/>
Computer usability testing and evaluation / 
Richard H. Spencer 
 - Englewood Cliffs, N.J. :  Prentice-Hall,  1985 
 - 224 p. ;  23 cm. 
<br/><br/><label>ISBN: </label>0131640887 
<br/><br/><label>LCCN: </label>84-018055 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer engineering<br/>Human engineering<br/>New products