TY  - BOOK
AU  - Duggal, S. K.
TI  - Surveying Vol. 1
SN  - £9,781,259,029,837
U1  - 526.9 
CY  - Chennai
PB  - Mcgraw Hill Education ( India ) Private Limited
KW  - Surveying
N1  - 318/18
ER  -