Null, Roberta <br/><br/>
Universal design :  principles and models  
Roberta Null 
 - New York :  CRC press, Taylor & Francis group ,   2014 
 - xiv, 380p. :  colour illustration ;   28cm. 
<br/><br/> Includes indexes 
<br/><br/><label>ISBN: </label>9781138076006 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Universal desgin