TY  - BOOK
AU  - Punmia,B C
AU  - jain,Ashok Kumar
AU  - jain,Arun Kumar
TI  - Surveying: field astronomy, photgrametric surveying electromagnetic distance measurement (EDM) 
SN  - 8170080541
U1  - 526.9 22
PY  - 1990///
CY  - New Delhi
PB  - Laxmi pub.
KW  - Surveying
ER  -