@book{10575,
	author = {Gee-Clough, D. and Pearson, G.},
	title = {Ballasting wheeled tractors to achieve maximum power output in frictional-cohesive soils /},
	publisher = {s.n.,},
	year = {1982},
	address = {S.l. :},
	note = {Reprinted from J. Agric. Engng. Res., 1982, 27}
}