Precise levelling  contributions to the Workshop on Precise Levelling held at the University of Hannover, March 16-18, 1983 
H. Pelzer and W. Niemeier, editors 
 - Bonn  Ferd. Dummlers Verlag  c1984 
 - xii, 490 p.  ill  21 cm. 
<br/><br/> "Dummlerbuch 7856." 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Leveling
<br/><br/><label>Dewey Class. No.: </label>526.3  / 6