TY  - BOOK
AU  - Ahnfors, Mats
TI  - Studies on optimisation of ground water extraction structures and revitalisation of dug wells: SIDA Assisted ground water project in Noyil, Ponnani and Amaravati River basins, Tamil Nadu and Kerala Report 1:22
U1  - INDIA/AGRI&IRR/1:22/1980 
CY  - Coimbatore
PB  - Ministry of ahriculture and irrigation
ER  -