TY  - BOOK
AU  - Duggal, S. K.
TI  - Surveying
SN  - 9781259029837
U1  -  625.72 
PY  - 2013///
CY  - New Delhi,India
PB  - McGraw Hiill Education (India)
KW  - Surveying
N1  - 2 vols
ER  -