TY  - BOOK
AU  - Thomas Isaac, T. M.
TI  - Marunna kanalukal malinyamakanna theruvukal: Alappuzha vruthiyakumbol 
SN  - 9789383903351
PY  - 2020///
CY  - Thiruvananthapuram
PB  - Chintha Publishers
KW  - Engineering
KW  - Sewage management
ER  -