Purchase, Helen C. <br/><br/>
Experimental human-computer interaction :  a practical guide with visual examples / 
Helen C. Purchase, University of Glasgow 
 - Cambridge, England :  Cambridge University Press,  c2012 
 - xvi, 245 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9781107010062 (hbk.) 9780521279543 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Human--Computer interaction