@book{3961,
	author = {Berenstain, Stan, and Berenstain, Jan,},
	title = {The Berenstain Bears trick or treat },
	publisher = {Random House,},
	year = {c1989.},
	series = {A First time book},
	address = {New York :},
	url = {http://www.loc.gov/catdir/bios/random056/89030884.html}
}