TY  - BOOK
AU  - Duggal,S.K.
TI  - Surveying
SN  - 9781259028991
U1  - 526.9 22
PY  - 2013///[Reprinted 2016]
CY  - New Delhi.
PB  - Tata Mcgraw-Hill
KW  - Surveying
N1  - Includes index
ER  -