TY  - BOOK
AU  - Duggal,SK
TI  - Surveying vol 1
T2  - Civil engineering series
SN  - 978125902899
AV  - TA625 D866 2013 
PY  - 2013///
CY  - New Delhi
PB  - Tata McGraw-Hill
KW  - Surveying
N1  - Includes index
ER  -