@book{7067,
	author = {Voelcker, John Augustus. and Hall, Daniel,},
	title = {The valuation of unexhausted manures obtained by the consumption of foods by stock.},
	publisher = {J. Murray,},
	year = {1903.},
	address = {London,},
	note = {"From the Journal of the Royal Agricultural Society of England, vol. 63, 1902, p. 76-114."}
}