

@article {16650,
	title = {Tentative nitrogen budget for pit latrines{\textendash}eastern {Botswana}},
	journal = {Environmental Geology},
	volume = {38},
	number = {3},
	year = {1999},
	pages = {199{\textendash}203},
	author = {Jacks, G and Sefe, F and Carling, M and Hammar, M and Letsamao, P}
}
