@book{7855,
	author = {Johnston, Jas. F. W.},
	title = {Lectures on the general relations which science bears to practical agriculture,},
	publisher = {C.M. Saxton,},
	year = {1850.},
	address = {New York,},
	url = {http://hdl.loc.gov/loc.gdc/scd0001.0002586380A}
}