TY  - BOOK
AU  - Agor R.
TI  - Text Book of Surveying and Levelling
SN  - 0000008858
U1  - 627.81 
PY  - 1979///
CY  - New Delhi
PB  - Khanna Publications,New Delhi.
KW  - Mechanical EngineeringLevelling  Surveying
ER  -