TY  - BOOK
AU  - Duggal, S. K.
TI  - Surveying (Volume 2)
SN  - 9789353167523
U1  - 526.9 DUG-S 
PY  - 2019///
CY  - India
PB  - McGraw Hill
KW  - Remote sensing
KW  - Surveying
KW  - Geographic information systems
ER  -