TY  - BOOK
AU  - Duggal, S K
TI  - Surveying
SN  - 9780070151352
U1  - 526.9 DUG 
PY  - 2009///
CY  - New Delhi
PB  - Tata McGraw Hill Education Private Limited
KW  - Geographic information systems
KW  - Remote sensing
KW  - Surveying
N1  - Includes index
ER  -