@book{51726,
	author = {Keynes, John Maynard,},
	title = {A treatise on probability /},
	publisher = {AMS Press,},
	year = {1921 [ Reprinted 1957 ]},
	address = {New York :},
	note = {Reprint of the 1921 ed. published by Macmillan, London.}
}