TY  - BOOK
ED  - Indian standards institution                                                                                                                                                                                                                                   . 
TI  - Methods of test for soils    Part-XL  IS:2720-1977 / 
U1  - 624.131 
PY  - 1978///
CY  - New Delhi : 
PB  - Indian standards institution , 
ER  -