TY  - BOOK
AU  - ,   .
ED  - Indian standards institution                                                                                                                                                                                                                                   . 
TI  - Code of practice for design of cross drainage works:part-2 specific requirements section-5,IS:7784-1980 / 
U1  - 626.823 
PY  - 1981///
CY  - New Delhi : 
PB  - Indian standards institution , 
ER  -