@book{23108,
	author = {Bos, L.,},
	title = {Symptoms of virus diseases in plants /},
	publisher = {Research Institute for Plant Protection,},
	year = {c 1978},
	address = {Wageningen :},
	edition = {[3. rev. ed.].},
	note = {"With indexes of names of symptoms in English, Dutch, German, French, Italian, and Spanish."}
}