TY  - BOOK
AU  - Duggal, S. K.
TI  - Surveying : vol. 1
SN  - 9780070151376
U1  - 624.1517 DUG-S 
PY  - 2009///
CY  - India
PB  - Tata McGraw-Hill
KW  - Surveying
ER  -