Johnson, Janet Buttolph Joslyn, Richard A <br/><br/>
Political science research methods 

 - New Delhi  Prentice - hall of India pvt. ltd.  1987 
 - xvi,364p.; 22cm. 
<br/><br/><label>ISBN: </label>8170362148 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Observations<br/>Political science<br/>Politics<br/>Sampling