TY  - BOOK
AU  - Kochher,C.L.
TI  - Elementory surveying and levelling: for degree 1st year & A. M. I. E. 
U1  - 526.9 
PY  - 1973///
CY  - Ludhiana
PB  - Katson Pub. House
KW  - Surveying
KW  - Levelling
KW  - Length measurement
N1  - Includes index
ER  -