TY  - BOOK
AU  - Duggal,S.K.
TI  - Surveying
SN  - 0074620894(vol.1)
U1  - 526.9 22
PY  - 1996///
CY  - New Delhi
PB  - Tata mcgraw-hill
KW  - Surveying
N1  - Including index
ER  -