TY  - BOOK
ED  - Indian standards institution                                                                                                                                                                                                                                   . 
TI  - Methods of test for soils  2720-1979 part-xxx1/sec-2 / 
U1  - 624.131 
PY  - 1988///
CY  - New Delhi : 
PB  - Indian standards institution , 
ER  -