Saxena, R.S. <br/><br/>
Information Retrieval Techniques and Reference Sources & Tools In Pure and Applied Sciences 
/ by  R.S. Saxena 
 - 1st ed. 
 - Agra:  Y.K. Publishers,  1987 
 - 144p. 
<br/><br/><label>ISBN: </label>8185070083 
<br/><br/><label>Dewey Class. No.: </label>028.7  / SAX/I