TY  - BOOK
AU  - Duggal, S.K. 
TI  - Surveying
SN  - 9780070151376 (v.I) 
U1  - 526.9 
PY  - 2009///
CY  - New Delhi 
PB  - Tata McGraw-Hill Education 
KW  - Surveying
N1  - Includes index
ER  -