@book{1621,
	author = {Winston, Holt Rinehart &},
	title = {Holt earth science laboratory investigation},
	publisher = {Steck-Vaughn,},
	year = {1994.},
	address = {New ork},
	edition = {Edition Unstated.},
	url = {http://www.amazon.com/exec/obidos/ASIN/0030975352/chopaconline-20}
}