@book{160494,
	author = {Southwood, Richard, and Henderson, P. A. and ebrary, Inc.},
	title = {Ecological methods},
	publisher = {Blackwell Science,},
	year = {2000.},
	address = {Oxford ;},
	edition = {3rd ed.},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10308217}
}