@book{30726,
	author = {National Fertilizer Development Center. Muscle Shoals, Ala.},
	title = {Annual report...},
	publisher = {NFDC,},
	year = {19 -},
	address = {Muscle, Shoals, Ala. :},
	note = {La biblioteca tiene : 1970-75, 1976, 1977}
}