TY  - BOOK
AU  - Duggal,S. K.
TI  - SURVEYING
SN  - 0074620908
U1  - 526.9 
PY  - 1996///
CY  - 
PB  - Tata Mcgraw-Hill,New Delhi
KW  - Surveying
KW  - Geodesy
N1  - Includes Index
ER  -