TY  - BOOK
AU  - Duggal, S. K.
TI  - Surveying
SN  - 9780070534704
AV  - TA 545 .D85 2004 
PY  - 2004///
CY  - New Delhi
PB  - Tata McGraw-Hill
KW  - Surveying
KW  - Surveyor's compass
KW  - Mathematics
N1  - Include Index
ER  -