TY  - BOOK
TI  - Dhuva dharika
U1  - 891.432 
PY  - 1950///
CY  - Kottayam
PB  - Rajkamal Prakashan 
KW  - GeneralSTRACTURAL NOTES, LIGHTHOUSE, ILLUMNATION, SOUND, SIGNIALS, RADIOAIDS LIGHT HOUSE MAINTENANCE
ER  -