@book{83670,
	author = {Peirce, Charles S. and Burks, Arthur W.},
	title = {Collected papers of Charles Sanders Peirce /},
	publisher = {Harvard University Press,},
	year = {1931-1958.},
	address = {Cambridge :},
	note = {Vols. 7-8 edited by Arthur W. Burks.}
}