TY  - GEN
AU  - Agor , R.
TI  - A text Book of Surveying and Levelling: for digree, A.M.I.E. and diploma students : practising engineers and surveyors
U1  - 526.9 
PY  - 2002///
CY  - New Delhi
PB  - Khanna Publishers
KW  - SURVEYING
KW  - METHOD OF CONTOURING WITH AN INDIAN TANGENT CLINOMETER
KW  - TACHEOMETRIC PLANETABLING
ER  -