TY  - BOOK
AU  - Duggal, S.K.
TI  - Surveying   Vol 1
SN  - 9780070151376
U1  - 526.9 
PY  - 2009///
CY  - New Delhi
PB  - Tata McGraw- Hill
KW  - Surveying
N1  - Surveying
ER  -