International Institute for Aerospace Survey and Earth Sciences  <br/><br/>
The basic principles of multicoloured map-making 

 - Irrigation Department  Colombo 
 - 19p. 
<br/><br/><label>Nat. Bib. No.: </label>6893 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Multi colour map
<br/><br/><label>Subjects--Index Terms: </label>image rectification  scribing  strip masking 
<br/><br/><label>Universal Decimal Class. No.: </label>528.923  / MUL