@book{7125,
	author = {Williams, Douglas John. and Watson, Gillian W.},
	title = {The scale insects of the tropical south pacific region},
	publisher = {C.A.B. International,},
	year = {19 -1990},
	address = {Oxon :},
	note = {La biblioteca tiene: v.2 The mealybugs (Pseudococcidae) -- v.3 The soft scales (Coccidae) and other families}
}