TY  - BOOK
ED  - Indian standards institution                                                                                                                                                                                                                                   . 
TI  - Specification for equipment for sub-surfsce sounding of soils  IS:10589-1983 / 
U1  - 624.131 
PY  - 1984///
CY  - New Delhi : 
PB  - Indian standards institution , 
ER  -