@book{1773,
	author = {Ross, Sheldon M.},
	title = {A first course in probability},
	publisher = {Pearson,},
	year = {2014},
	address = {Boston :},
	edition = {9 ed.},
	url = {https://go.openathens.net/redirector/uoh.cl?url=https://uoh.overdrive.com/media/10182601?cid=290259}
}