TY  - BOOK
ED  - Indian standards institution                                                                                                                                                                                                                                   . 
TI  - Code of practice for design and construction of foundations for transmission line towers and poles,IS:4091-1979 / 
U1  - 624.159 
PY  - 1980///
CY  -  : 
PB  - ISI , 
ER  -