@book{56768,
	author = {Thoreau, Henry David, and ebrary, Inc.},
	title = {Walden},
	publisher = {Penguin Books,},
	year = {1983.},
	series = {Penguin American library},
	address = {Harmondsworth, Middlesex, England ;},
	url = {http://site.ebrary.com/lib/strathmore/Doc?id=5004930}
}