TY  - BOOK
AU  - Duggal, S. K.
TI  - Surveying  Vol-I  
SN  - 9780070151376
U1  - 526.9 D866s/ 2009. 
PY  - 1996///
CY  - New Delhi
PB  - Tata McGraw Hill Education
KW  - Civil engineering
KW  - Surveying
KW  - Geographical Information
N1  - Include index
ER  -