Brohier, R.L.
The Gal Oya valley project in Ceylon - [Colombo] Department of Information 1951 - 44p.: photos
IRRIGATION
IRRIGATION-Gal Oya
IRRIGATION-Rural-Sri Lanka
626.8(548.7) / B7
The Gal Oya valley project in Ceylon - [Colombo] Department of Information 1951 - 44p.: photos
IRRIGATION
IRRIGATION-Gal Oya
IRRIGATION-Rural-Sri Lanka
626.8(548.7) / B7