Shahani, P.B.. <br/><br/>
Text Book of Surveying /  

 - Second Ed. /  
 - New Delhi-110001 :   Oxford & IBH Publishing Co.. 
 - p542 :  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Metric System
<br/><br/><label>Dewey Class. No.: </label>D:2  / M2.1