Cohen, Leo J. <br/><br/>
Data base management systems / 
principal author Leo J. Cohen ; contributors Steven Robinson, Alan Stutz, Roy Wood ; editors Lawrence K. Grodman, Edwin F. Kerr. 
 - Wellesley, Mass. :  Q.E.D. Information Sciences,  1976. 
 - 1 v. (various pagings) ;  28 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronic data processing.<br/>Electronic digital computers--Programming.