Elementary surveying 
La Putt, Juny Pilapil. 
 - 3rd ed. 
 -  Baguio Research and Publishing Center,  2008 
 - v, 643 p. 
<br/><br/>
<br/><br/><label>ISBN: </label>9-71085581-6 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Surveying.
<br/><br/><label>Dewey Class. No.: </label>F 627.131 L31e 1987