Fox, D. L. (2010). U.S. patent opinions and evaluations. Oxford University Press.
Dyfyniad Arddull ChicagoFox, David L. U.S. Patent Opinions and Evaluations. Oxford: Oxford University Press, 2010.
Dyfyniad MLAFox, David L. U.S. Patent Opinions and Evaluations. Oxford University Press, 2010.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.