Shekhar, Shashi,  1963- <br/><br/>
Spatial databases :  a tour / 
Shashi Shekhar, Sanjay Chawla. 
 - Upper Saddle River, N.J. :  Prentice Hall,  c2003. 
 - xxiii, 262 p. :  ill. ;  25 cm. 
<br/><br/> "A Alan R. Apt book." 
<br/><br/>Includes bibliographical references (p. 250-257) and index. 
<br/><br/><label>ISBN: </label>0130174807 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geographic information systems.
<br/><br/><label>LC Class. No.: </label>G70.212