@book{81804,
	author = { R.N.Prasad (and others)},
	title = {Soil fertility management in North Eastern Hill region},
	publisher = {Division of Soil Science, ICAR Research Complex for N.E.H.Region},
	year = {1981},
	series = {ICAR Research Complex for N.E.H.Region; Research Bulletin; no.9},
	address = {Meghalaya}
}