Hoover, Kenneth <br/><br/>
The elements of social scientific thinking / 
Kenneth Hoover, Todd Donovan. 
 - 6th ed. 
 - New York :  St. Martin's Press ,  1995. 
 - 201 p. 
<br/><br/><label>ISBN: </label>0-312-09643-7 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science