Research methods for criminal justice and criminology 
Maxfield, Michael G. 
 - 7th ed. 
 -  Cengage Learning,  2015 
 - xvii, 477 p. 
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<br/><br/><label>ISBN: </label>978-1-28506784-1 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Criminal justice, Administration of -- Research -- Methodology.
<br/><br/><label>Dewey Class. No.: </label>364.072 M463 2015