Nirmal Singh <br/><br/>
Marketing principles and techniques 
Nirmal Singh, Devendra Thakur; Nirmal Singh, Devendra Thakur. 
 - 2nd rev. ed. 
 - New Delhi  Deep and Deep  2003 
 - xxi, 249p., 25cm. 
<br/><br/><label>ISBN: </label>81-7629-422-5. 
<br/><br/><label>Dewey Class. No.: </label>658.8  / N63M