Spector, Paul E <br/><br/>
Research designs 
Paul E. Spector 
 - Newbury Park  Sage Publications  1981 
 - 80 p. : ill. ; 22 cm. 
<br/><br/>Bibliography : p. 78-80 
<br/><br/><label>ISBN: </label>0803917090 
<br/><br/><label>LCCN: </label>81-40888 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences--Research