Campbell, Malcolm J. <br/><br/>
Business information services /  
Malcolm J Campbell. 
 - 2nd ed /   . 
 - London :   Clive Bingley ,   1981. 
 - 179 p ;   22cm. 
<br/><br/>Includes index 
<br/><br/><label>ISBN: </label> Rs. 525.00 (Pbk) 
<br/><br/><label>Subjects--Index Terms: </label>INFORMATION SERVICES 
<br/><br/><label>Dewey Class. No.: </label>026.38  / CAM/B