@book{53242,
	author = {Rothamsted Experimental Station. Harpenden, Herts, England,},
	title = {Report, 19 -1987},
	publisher = {(s.e.),},
	year = {19 -1987.},
	address = {Harpenden :},
	note = {c.c. AFRC Institute of Arable Crops Research, Harpenden, Hertfordashire, England, 1988-}
}