@book{16658,
	author = {Stenger, Christiane},
	title = {A sheep falls out of the tree},
	publisher = {McGraw-Hill,},
	year = {c2009},
	url = {http://www.netlibrary.com.libraryumpsa.idm.oclc.org/urlapi.asp?action=summary&v=1&bookid=268785}
}