Conceptual database: an entity- relationship approach 
Batini, Carlo. 
 -  The Benjamin/ Cummings Publishing Company, Inc.  1992 
 - xii,470 pages. 
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<br/><br/><label>ISBN: </label>0-8053-0244-1 
<br/><br/><label>Subjects--Topical Terms: </label><br/>The data base design.
<br/><br/><label>Dewey Class. No.: </label>005.74 B38c 1992