TY  - BOOK
AU  - Das, G.
AU  - Agarwal, Atul Mohan
TI  - Survekshn -I = Surveying -I
U1  - 526.9 
PY  - 2011///
CY  - Meerut
PB  - Nav Bharat Prakashan
KW  - Surveying
KW  - Polytechnic
ER  -