@book {457,
	title = {Field Guide to the Bees of Great Britain and Ireland},
	year = {2015},
	pages = {336},
	publisher = {British Wildlife Publishing},
	organization = {British Wildlife Publishing},
	isbn = {978-1910389034},
	author = {Falk, S and R Lewington}
}
@book {447,
	title = {Highland Bumblebees: Distribution, Ecology and Conservation},
	year = {2006},
	isbn = {978 0 9552211 0 1},
	url = {http://www.hbrg.org.uk/Atlases.html},
	author = {Macdonald, M and Nisbet, G}
}
