Johson,B. <br/><br/>
Educational Research:  quantitave, qualitative, and mixed approaches/ 
Burke, Johson and Larry Christensen. 
 - 2nd ed 
 - Boston:  Pearson,  2004. 
 - xxvii,564p.:  ill.;  25 cm 
<br/><br/> includes bibliographical references, appendix and index 
<br/><br/><label>ISBN: </label>0205361269 
<br/><br/><label>LC Class. No.: </label>DUCE LB1028.J59