@book{4483,
	author = { Mendis , D.L.O.},
	title = {Evolution and development of water and soil conservation ecosystems- from ancient dry zone forest garden to modern Jaffna market garden},
	publisher = { Sri Lanka Pugwash group,},
	year = {2001 },
	series = {seminar aesthetics in science},
	address = {Ratmalana:}
}