@book{46679,
	author = {Perry, David A. and Oren, Ram},
	title = {Forest ecosystems /},
	publisher = {Johns Hopkins University Press,},
	year = {2008},
	address = {Baltimore :},
	edition = {2nd ed.},
	url = {http://www.loc.gov/catdir/toc/ecip082/2007042295.html}
}