Elizabeth Verkey. (2015). Intellectual property. Eastern Book Co.
Dyfyniad Arddull ChicagoElizabeth Verkey. Intellectual Property. Lucknow: Eastern Book Co, 2015.
Dyfyniad MLAElizabeth Verkey. Intellectual Property. Eastern Book Co, 2015.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.