TY  - BOOK
AU  -  Davis,Raymond E.
TI  -  Elementary plans surveying / 
U1  -  526.9 DAV 
PY  - 1955///
CY  -  New York : 
PB  -  MacGraw-Hill, 
KW  -  Surveying
N1  -  Includes bibliographical references and index
ER  -