TY  - BOOK
AU  - Kochher,C.L.
TI  - Surveying and levelling: for diploma civil engineering 1st, 2nd & final year & I. T. C. surveyor classes in metric units 
U1  - 526.9 
PY  - 1972///
CY  - Ludhiana
PB  - Katson Pub. House
KW  - Surveying
KW  - Levelling
KW  - Length measurement
ER  -