Johns, A. (2009). Piracy: The intellectual property wars from Gutenberg to Gates. The University of Chicago Press.
Dyfyniad Arddull ChicagoJohns, Adrian. Piracy: The Intellectual Property Wars from Gutenberg to Gates. Chicago: The University of Chicago Press, 2009.
Dyfyniad MLAJohns, Adrian. Piracy: The Intellectual Property Wars from Gutenberg to Gates. The University of Chicago Press, 2009.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.