TY  - BOOK
AU  - Duggal,S K
TI  - Surveying : : Vol-2 / 
SN  - 97800701151352
U1  - 625.723 
PY  - 2011///
CY  - New Delhi
PB  - Tata Mc Graw Hill
KW  - Surveying
KW  - Civil Engineering
ER  -