Aggarwal .Y .P <br/><br/>
Sampling  methods for social investigation 

 - Mumbai # Ambala  Asia Publishing House # Bharatiya Vidya Vihar  1953 # 1976 
 - 95  Hb 
<br/><br/><label>Subjects--Facted Index Terms: </label><br/>
<br/><br/><label>Dewey Class. No.: </label>001.433