@book{213902,
	author = {Tscharntke, Teja, and Hawkins, Bradford A. and ebrary, Inc.},
	title = {Multitrophic level interactions},
	publisher = {Cambridge University Press,},
	year = {2002.},
	address = {Cambridge, U.K. ;},
	url = {http://site.ebrary.com/lib/strathmore/Doc?id=10069947}
}