@article {88,
	title = {GROSS NITROGEN BALANCES HANDBOOK},
	year = {2007},
	month = {10/2007},
	pages = {24},
	institution = {OECD, EUROSTAT},
	keywords = {agriculture, methodology, nitrogen, nutrient},
	url = {http://www.oecd.org/department/0,3355,en_2649_33793_1_1_1_1_1,00.html},
	author = {OECD}
}
