@booklet {richards_cost_2005,
	title = {The Cost of U.S. Forest-Based Carbon Sequestration},
	year = {2005},
	note = {F-18},
	month = {jan},
	publisher = {Pew Center on Global Climate Change},
	address = {Arlington, Virginia},
	author = {Richards, Kenneth R. and Robert N. Stavins}
}
