Sehgal, R.L. <br/><br/>
Designing And Evaluation of Research in Lib Science 

 - New Delhi  Ess Ess Pub.  1998 
<br/><br/><label>ISBN: </label>81-7000-228-1 
<br/><br/><label>Dewey Class. No.: </label>20.72  / SHE