@book{187559,
	author = {Perry, John, and Perry, Jane Greverus.},
	title = {The Sierra Club guide to the natural areas of California /},
	publisher = {Sierra Club Books,},
	year = {c1983.},
	address = {San Francisco :},
	url = {http://www.loc.gov/catdir/description/random041/82016936.html}
}