@book {449,
	title = {British Plant Galls},
	year = {2011},
	pages = {432},
	publisher = {Field Studies Council},
	organization = {Field Studies Council},
	edition = {2nd},
	author = {Redfern, M and Shirley, P}
}
@book {448,
	title = {Plant Galls},
	series = {New Naturalist Library},
	volume = {117},
	year = {2011},
	pages = {562},
	publisher = {Harper Collins},
	organization = {Harper Collins},
	address = {London},
	author = {Redfern, M}
}
