@book{131239,
	author = {Ayer, A. J.},
	title = {Logical positivism /},
	publisher = {The Free Press,},
	year = {1978, c1959.},
	address = {Westport, Conn. :},
	note = {Reprint of the ed. published by Free Press, New York, in series: The Library of philosophical movements.},
	url = {http://www.loc.gov/catdir/enhancements/fy1511/78006321-b.html}
}