Ganewatte, P "Thattumaru" and "Kattimaru" systems of rotation of cultivation of paddy land a case study in the village of Undurawa Halmillawewa, Anuradhapura district, Sri Lanka - Colombo ARTI 1974 - 11 p. - Occasional publication series . Subjects--Topical Terms: Agricultural methods Dewey Class. No.: 338.1625493 / GAN