Walker Melissa   <br/><br/>
Principles of geographical information systems 
Walker Melissa   
 - Brooklyn  States Academic Press  2022 
 - viii,237p. 
<br/><br/><label>ISBN: </label>9780639894376 
<br/><br/><label>Source: </label>Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>GIS Principles