TY  - BOOK
AU  - Basak, NN.
TI  - Surveying and levelling
SN  - 007460399x
AV  - TA545.B3 2007 
PY  - 2007///
CY  - New Delhi
PB  - Tata McGraw-Hill.
KW  - Surveying.
KW  - Levelling
ER  -