Neuman, Lawrence W. <br/><br/>
Social Research Methods:  qualitative and quantitative approaches/ 

 - 7th ed. 
 - England:  Pearson Education Limited,  2014. 
 - 598p.:  ill.; 
<br/><br/>Includes bibliography references and index. 
<br/><br/><label>ISBN: </label>9781292020235 
<br/><br/><label>LC Class. No.: </label>H62  / neu2016