@book{85789,
	author = {Uppal, H. L.},
	title = {Green manuring of soils for increasing crop yield for stepping up food production in the country,},
	publisher = {Land Reclamation, Irrigation & Power Research Institute,},
	year = {1962.},
	series = {Food production series, no. 4},
	address = {Amritsar,}
}