Labovitz, Sanford,  1935- <br/><br/>
Introduction to social research 
/ Sanford Labovitz, Robert Hagedorn 
 - 2d ed. 
 - New York :  McGraw-Hill,  1975 
 - xii,  147 p. ;  21 cm. 
<br/><br/>Includes bibliographies and index. 
<br/><br/><label>ISBN: </label>0070357765 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences--Research