TY  - BOOK
AU  - Duggal, S.K.
TI  - Surveying, Vol-2
SN  - 9780070534711
U1  - 526.9 
PY  - 1996///,2013
CY  - New Delhi
PB  - Tata McGraw Hill
KW  - Surveying
KW  - Civil
N1  - Civil
ER  -