Saparamadu, Rupa Abeysuriya, Welipatanwila Tiddy ill.
Irrigation and soil conservation in ancient Lanka - Dehiwala Tisara Prakasakayo [n.d.] - 48p.
A picture story
9555640726
HISTORY - Sri Lanka
IRRIGATION - Sri Lanka
954.87 / S3
Irrigation and soil conservation in ancient Lanka - Dehiwala Tisara Prakasakayo [n.d.] - 48p.
A picture story
9555640726
HISTORY - Sri Lanka
IRRIGATION - Sri Lanka
954.87 / S3