Echevarrķa, Jana  <br/><br/>
Making content comprehensible for english learners:  the siop model/ 
Jana Echevarrķa, MaryEllen Vogt and Deborah J. Short 
 - Fourth Edition ; 
 - New Jersey:  Pearson Education,  c2013. 
 - xix, 340 pages :  illustrations, photos ;  28 cm. 
<br/><br/>Includes bibliographical references and index<br/>