@book{58257,
	author = {Prins, W. H. and Break, A. and Netherlands Fertilizer Institute. Den Haag, The Netherlands.},
	title = {Nitrogen response of grassland under mowing, altermate grazing and mowing, or grain a six-year trial},
	publisher = {Netherlands Fertilizer Institute,},
	year = {1984},
	series = {Netherlands Fertilizer technical Bulletin},
	address = {Den Haag, Netherlands :}
}